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When is Nolan McLean getting called up? Will McLean get promoted in August 2025? Read about this top fantasy baseball prospect outlook heading into Week 21.
With the New York Mets falling in the NL East standings this month, they opted to provide a much-needed spark to their roster. Earlier in the week, they announced that they would be promoting top pitching prospect Nolan McLean to the MLB roster.
During the regular season, McLean has been one of the most productive pitchers in the minor leagues.
Should fantasy managers look to add McLean to their bench? When should fantasy managers expect him to get the call? Let's dive in!
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Nolan McLean Prospect Update for Fantasy Baseball
The former third-round pick from the 2023 MLB Draft made his MLB debut on Saturday against the Seattle Mariners.
The Mets top pitching prospect Nolan McLean will get the ball at Citi Field on Saturday, per @AnthonyDiComo 👏 pic.twitter.com/1QRROVuhje
— MLB (@MLB) August 13, 2025
In this start, McLean looked the part as he tossed 5 1/3 shutout innings en route to picking up the victory over the Mariners. He allowed just two hits and struck out eight batters. However, his command was alarming at times as he served up four free passes.
Earlier in the campaign, McLean opened the season at Double-A but needed only a short look before moving up to the top level of the system. Seeing him look just as strong in his MLB debut is an excellent sign for his rest-of-season outlook.
Nolan McLean Outlook for Fantasy Baseball
When McLean got the call, the Mets announced that they would be shifting veteran right-hander Frankie Montas to the bullpen. As a result, McLean will likely be given a handful of starts before the Mets make their final decision.
At Double-A, the right-hander tossed 26 2/3 innings to the tune of a stellar 1.37 ERA and a 1.22 WHIP. During this stretch, he struck out 30 hitters and allowed only 12 walks. Then, during his first look at Triple-A Syracuse, McLean continued to impress, holding a 2.78 ERA, 1.10 WHIP, and a 97:38 K:BB over 87 1/3 innings of work.
During his last four outings at Syracuse, he was especially dominant, posting a near-perfect 1.96 ERA and a 0.83 WHIP. Given his elite success in the minor leagues this season and impressive MLB debut, McLean should be viewed as a must-add in all formats this weekend.
Nolan McLean’s rapid rise to the big leagues culminates this Saturday, when he’s set to make his debut! pic.twitter.com/v4wBnLbKNK
— Pitch Profiler (@pitchprofiler) August 13, 2025
- Written by Andy Smith
Top Prospect Rankings and Call-Up ETAs
You can also check out the rest of RotoBaller's fantasy baseball prospect rankings. Eric Cross updates the below rankings weekly for the top impact prospects for 2025, and when they may be called up:
| Rank | Player | Pos | Team |
| 1 | Spencer Jones | OF | NYY |
| 2 | Kristian Campbell | 2B | BOS |
| 3 | Dylan Beavers | OF | BAL |
| 4 | Andrew Painter | SP | PHI |
| 5 | Samuel Basallo | C | BAL |
| 6 | Jordan Lawlar | SS | ARI |
| 7 | Bubba Chandler | SP | PIT |
| 8 | J.J. Wetherholt | SS | STL |
| 9 | Nolan McLean | SP | NYM |
| 10 | Justin Crawford | OF | PHI |
| 11 | Brandon Sproat | SP | NYM |
| 12 | Hunter Barco | SP | PIT |
| 13 | Bryce Eldridge | 1B | SFG |
| 14 | Jhostynxon Garcia | OF | BOS |
| 15 | Carson Benge | OF | NYM |
| 16 | Sal Stewart | 3B | CIN |
| 17 | Jonathon Long | 1B | CHC |
| 18 | Owen Caissie | OF | CHC |
| 19 | Moises Ballesteros | C | CHC |
| 20 | Carson Williams | SS | TBR |
| 21 | Zac Veen | OF | COL |
| 22 | Jonah Tong | SP | NYM |
| 23 | Payton Tolle | SP | BOS |
| 24 | Chase DeLauter | OF | CLE |
| 25 | Travis Bazzana | 2B | CLE |
Top Prospect Dynasty Rankings
Looking for longer term fantasy baseball prospect rankings? You can also check out RotoBaller's top dynasty prospect rankings from Eric Cross:
| Rank | Player | Position | Team | Age | ETA | Prev |
| 1 | Konnor Griffin | SS | PIT | 19.31 | 2027 | 2 |
| 2 | Kevin McGonigle | SS | DET | 21.00 | 2026 | 4 |
| 3 | Chase Burns | P | CIN | 22.59 | Debuted | 5 |
| 4 | Jacob Misiorowski | P | MIL | 23.38 | Debuted | 15 |
| 5 | Sebastian Walcott | SS | TEX | 19.43 | 2026 | 3 |
| 6 | Leodalis De Vries | SS | ATH | 18.85 | 2027 | 6 |
| 7 | Jesus Made | 3B/SS | MIL | 18.28 | 2027 | 7 |
| 8 | Luis Pena | 3B/SS | MIL | 18.76 | 2027 | 8 |
| 9 | Samuel Basallo | C/1B | BAL | 21.01 | 2025 | 9 |
| 10 | J.J. Wetherholt | SS | STL | 22.94 | 2025 | 18 |
| 11 | Zyhir Hope | OF | LAD | 20.58 | 2027 | 11 |
| 12 | Walker Jenkins | OF | MIN | 20.49 | 2026 | 14 |
| 13 | Eduardo Quintero | OF | LAD | 19.92 | 2027 | 19 |
| 14 | Max Clark | OF | DET | 20.65 | 2026 | 12 |
| 15 | Josue De Paula | OF | LAD | 20.23 | 2027 | 16 |
| 16 | Josue Briceno | C/1B | DET | 20.90 | 2026 | 20 |
| 17 | Colt Emerson | SS | SEA | 20.08 | 2026 | 24 |
| 18 | Michael Arroyo | 2B | SEA | 20.79 | 2026 | 25 |
| 19 | Andrew Painter | P | PHI | 22.36 | 2025 | 22 |
| 20 | Thomas White | P | MIA | 20.88 | 2026 | 36 |
| 21 | Spencer Jones | OF | NYY | 24.26 | 2025 | 78 |
| 22 | Lazaro Montes | OF | SEA | 20.82 | 2026 | 23 |
| 23 | Edward Florentino | OF | PIT | 18.76 | 2027 | 121 |
| 24 | Chase DeLauter | OF | CLE | 23.86 | 2026 | 17 |
| 25 | Carson Benge | OF | NYM | 22.58 | 2026 | 70 |
| 26 | Mike Sirota | OF | LAD | 22.17 | 2027 | 30 |
| 27 | Travis Bazzana | 2B | CLE | 22.97 | 2026 | 21 |
| 28 | Jordan Lawlar | SS/3B | ARI | 23.09 | Debuted | 28 |
| 29 | Arjun Nimmala | SS | TOR | 19.84 | 2027 | 26 |
| 30 | Bryce Eldridge | 1B | SFG | 20.82 | 2025 | 33 |
| 31 | JoJo Parker | SS | TOR | 19.02 | 2028 | NR |
| 32 | Travis Sykora | P | WAS | 21.30 | 2026 | 13 |
| 33 | Carson Williams | SS | TBR | 22.15 | 2025 | 35 |
| 34 | Owen Caissie | OF | CHC | 23.11 | 2025 | 91 |
| 35 | Dalton Rushing | C | LAD | 24.49 | Debuted | 29 |
| 36 | Bubba Chandler | P | PIT | 22.93 | 2025 | 27 |
| 37 | Jhostynxon Garcia | OF | BOS | 22.68 | 2026 | 40 |
| 38 | Moises Ballesteros | C | CHC | 21.75 | Debuted | 37 |
| 39 | Ethan Holliday | SS | COL | 18.48 | 2028 | NR |
| 40 | Emmanuel Rodriguez | OF | MIN | 22.47 | 2026 | 38 |
| 41 | Marcelo Mayer | SS | BOS | 22.68 | Debuted | 32 |
| 42 | Emil Morales | SS | LAD | 18.90 | 2027 | 41 |
| 43 | Dylan Beavers | OF | BAL | 24.02 | 2025 | 55 |
| 44 | Franklin Arias | SS | BOS | 19.74 | 2027 | 39 |
| 45 | Eli Willits | SS | WAS | 17.69 | 2028 | NR |
| 46 | Jonny Farmelo | OF | SEA | 20.69 | 2027 | 34 |
| 47 | Theo Gillen | OF | TBR | 19.93 | 2027 | 42 |
| 48 | Bryce Rainer | SS | DET | 20.12 | 2027 | 43 |
| 49 | Jett Williams | SS/OF | NYM | 21.79 | 2026 | 44 |
| 50 | Luke Keaschall | 2B | MIN | 23.01 | Debuted | 45 |
| 51 | Kade Anderson | P | SEA | 21.11 | 2026 | NR |
| 52 | Charlie Condon | 1B/OF | COL | 22.35 | 2026 | 50 |
| 53 | Jonah Tong | P | NYM | 22.16 | 2026 | 51 |
| 54 | Seth Hernandez | P | PIT | 19.14 | 2028 | NR |
| 55 | Jonathon Long | 1B/3B/OF | CHC | 23.58 | 2025 | 57 |
| 56 | Braden Montgomery | OF | CHW | 22.31 | 2026 | 46 |
| 57 | Ethan Conrad | OF | CHC | 21.12 | 2027 | NR |
| 58 | Sal Stewart | 3B | CIN | 21.70 | 2025 | 59 |
| 59 | Trey Yesavage | P | TOR | 22.06 | 2026 | 53 |
| 60 | Felnin Celesten | SS | SEA | 19.92 | 2027 | 47 |
| 61 | Jacob Melton | OF | HOU | 24.95 | Debuted | 54 |
| 62 | Payton Tolle | P | BOS | 22.79 | 2026 | 97 |
| 63 | Colby Thomas | OF | ATH | 24.56 | Debuted | 48 |
| 64 | Kaelen Culpepper | SS | MIN | 22.64 | 2026 | 89 |
| 65 | Jared Thomas | OF/1B | COL | 22.13 | 2026 | 64 |
| 66 | C.J. Kayfus | 1B | CLE | 23.81 | 2026 | 67 |
| 67 | Alex Freeland | SS | LAD | 23.98 | Debuted | 60 |
| 68 | Ike Irish | OF/C | BAL | 21.73 | 2027 | NR |
| 69 | Robert Calaz | OF | COL | 19.73 | 2027 | 56 |
| 70 | Aidan Smith | OF | TBR | 21.07 | 2026 | 62 |
| 71 | A.J. Ewing | OF | NYM | 21.02 | 2026 | 63 |
| 72 | Ryan Waldschmidt | OF | ARI | 22.86 | 2026 | 65 |
| 73 | Gage Jump | P | ATH | 22.35 | 2026 | 66 |
| 74 | Aiva Arquette | SS | MIA | 21.84 | 2027 | NR |
| 75 | Nolan McLean | P | NYM | 24.07 | 2025 | 71 |
| 76 | Cam Collier | 1B/3B | CIN | 20.74 | 2026 | 52 |
| 77 | Brice Matthews | 2B | HOU | 23.42 | Debuted | 86 |
| 78 | Jamie Arnold | P | ATH | 21.41 | 2026 | NR |
| 79 | Justin Crawford | OF | PHI | 21.59 | 2025 | 73 |
| 80 | Kyle Teel | C | CHW | 23.50 | Debuted | 61 |
| 81 | George Lombard | SS | NYY | 20.21 | 2026 | 75 |
| 82 | Noah Schultz | P | CHW | 22.04 | 2026 | 49 |
| 83 | Hagen Smith | P | CHW | 22.00 | 2026 | 69 |
| 84 | Eduardo Tait | C | MIN | 18.97 | 2027 | 79 |
| 85 | Luke Adams | 1B/3B | MIL | 21.31 | 2026 | 80 |
| 86 | Bo Davidson | OF | SFG | 23.12 | 2026 | 117 |
| 87 | Aidan Miller | SS | PHI | 21.19 | 2026 | 81 |
| 88 | Jace LaViolette | OF | CLE | 21.70 | 2027 | NR |
| 89 | Harry Ford | C | SEA | 22.49 | Debuted | 82 |
| 90 | Josuar De Jesus Gonzalez | SS | SFG | 17.84 | 2028 | 83 |
| 91 | Jarlin Susana | P | WAS | 21.40 | 2026 | 84 |
| 92 | Ryan Sloan | P | SEA | 19.55 | 2027 | 74 |
| 93 | Robby Snelling | P | MIA | 21.66 | 2026 | 87 |
| 94 | Aroon Escobar | 2B | PHI | 20.62 | 2027 | 96 |
| 95 | Tyson Lewis | SS | CIN | 19.60 | 2027 | 94 |
| 96 | Jhonny Level | SS | SFG | 18.39 | 2028 | 181 |
| 97 | Slade Caldwell | OF | ARI | 19.16 | 2027 | 72 |
| 98 | Alejandro Rosario | P | TEX | 23.61 | 2026 | 88 |
| 99 | Angel Genao | MI | CLE | 21.25 | 2026 | 77 |
| 100 | Seaver King | SS | WAS | 22.31 | 2026 | 95 |
| 101 | Kevin Alvarez | OF | HOU | 17.59 | 2028 | 98 |
| 102 | Santiago Suarez | P | TBR | 20.60 | 2026 | 99 |
| 103 | Otto Kemp | 3B | PHI | 25.94 | Debuted | 85 |
| 104 | Gavin Fien | 3B/SS | TEX | 18.44 | 2028 | NR |
| 105 | Cooper Pratt | SS | MIL | 21.00 | 2026 | 102 |
| 106 | Ricky Tiedemann | P | TOR | 23.00 | 2026 | 103 |
| 107 | Juneiker Caceres | OF | CLE | 18.01 | 2028 | 162 |
| 108 | Liam Doyle | P | STL | 21.21 | 2026 | NR |
| 109 | Jackson Ferris | P | LAD | 21.59 | 2026 | 118 |
| 110 | Hunter Barco | P | PIT | 24.67 | 2025 | 110 |
| 111 | Charlee Soto | P | MIN | 19.96 | 2027 | 111 |
| 112 | Christian Moore | 2B | LAA | 22.82 | Debuted | 113 |
| 113 | Dasan Hill | P | MIN | 19.64 | 2027 | 114 |
| 114 | Brandon Sproat | P | NYM | 24.92 | 2025 | 137 |
| 115 | JD Dix | SS | ARI | 19.85 | 2027 | 139 |
| 116 | Quinn Mathews | P | STL | 24.87 | 2025 | 68 |
| 117 | Jacob Reimer | 3B | NYM | 21.48 | 2026 | 161 |
| 118 | Caleb Bonemer | SS | CHW | 19.87 | 2027 | 150 |
| 119 | Tyler Bremner | P | LAA | 21.33 | 2026 | NR |
| 120 | Christian Scott | P | NYM | 26.18 | Debuted | NR |
| 121 | Braylon Payne | OF | MIL | 19.01 | 2027 | 122 |
| 122 | Cris Rodriguez | OF | DET | 17.55 | 2029 | 153 |
| 123 | Zac Veen | OF | COL | 23.68 | Debuted | 105 |
| 124 | Kash Mayfield | P | SDP | 20.52 | 2027 | 101 |
| 125 | Cam Caminiti | P | ATL | 19.02 | 2027 | 125 |
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