Just eight games were played on Monday after the Royals and Red Sox were postponed in KC, but there were plenty of runs scored across the board. When plenty of runs are scored, that means we have some pitchers who didn't quite do their job.

Here's a quick look at those who impressed on Monday, and those who... well, did not.

Editor’s Note: to read about even more waiver wire options, be sure to check out our famous waiver wire pickups list which is a running list that is updated daily. Prefer using your phone? Our free waiver wire app is available for download in the Apple Store.

Fantasy Baseball Studs

Sean Manaea (SP, OAK): One of our young pitching prospects on the slate made a good start. Manaea threw 6.2 innings against the Rangers, allowing four hits, a walk, and one earned run. The only issue I have with the performance is his three strikeouts, but that number should go up. Fantasy owners who have stuck through a disappointing first few outings for Manaea should feel better after this outing.

Robbie Ray (SP, ARI): Ray was slightly better than Manaea in the strikeout department, but he let up two more hits and another earned run over an extra third of an inning. Still, this is a great start for Ray, who has struggled out of the gate to a mid-four ERA. The upside is clearly there with the former fantasy speculation, but we need to see more to buy into a turnaround.

J.D. Martinez (OF, DET): It looks like Martinez is starting to adjust to his new hitting approach due to pitchers' cautiousness with him. He's heated up in the last week or so, and continued the trend with a double and a home run on Monday. This is a .300 hitter with 35 HR upside in a potent lineup.

Gregory Polanco (OF, PIT): Polanco continues to thrive in the three-hole of the Pirates lineup, going 3-for-5 with three runs and a stolen base on Monday. That brings his average up to .295, which is something that very little people would've predicted in March. If he can tap into his power potential a tad more, Polanco will solidify his status as a top-20 outfielder.

Desmond Jennings (OF, TB): This looks like the Jennings of old. The left fielder went 3-for-5 with a double and a home run. Jennings had an awful start to the season, as his average is sitting at .185, but if there's a specific reason that this turnaround is happening I might buy in to him as a fifth OF for my squad.

Mike Trout and Albert Pujols (OF and 1B, LAA): The power couple in the Angels lineup combined for five hits and five RBI on Monday. We saw a lot of this last year, but the dangerous duo hadn't been too intimidating for opposing pitchers up until this point. If Pujols can get his average back up near .250, this lineup will become significantly less laughable.

Fantasy Baseball Duds

Jose Berrios (SP, MIN): While Manaea was able to keep his fantasy owners from jumping off a bridge last night, Berrios did nothing of the sort. His putrid MLB stretch continued on Monday, as he couldn't get out of the first inning. Berrios allowed three hits, four walks, and seven earned runs before getting yanked with two outs. The upside is clearly there with the young prospect, but owners can't afford to start him anymore until we see better results.

J.A. Happ (SP, TOR): From young gun to veteran, Happ did his best Berrios impression on Monday. He was able to complete two grueling innings but couldn't get an out in the third inning before getting yanked. Happ allowed seven hits, a walk, and eight earned runs. Happ had been excellent up until this point, but he was due for some regression. Although you may have lost your sell high opportunity, I wouldn't drop Happ after this outing.

Adrian Gonzalez (1B, LOS): A matchup with a less than overpowering right-handed pitcher in Matt Shoemaker seemed like a nice opportunity for Gonzalez to get back on track. He went 0-for-3. Gonzalez owners aren't nearly as upset as those who own Joey Votto and Prince Fielder, but you want more than a .280 hitter with four home runs at this point in the season. Hopefully he can heat up with the weather.

Giancarlo Stanton (OF, MIA): As awesome a power hitter as Stanton is, we can't complain about the occasional 0-for-3, two strikeout game. However, two many of those games is why the stud is hitting just .233 so far this year. If Stanton can stop chasing the breaking ball out of the zone, we would see his average jump while the power potential remains elite.

Andrew McCutchen (OF, PIT): The face of the Pirates franchise is suddenly taking a back seat to the Pittsburgh outfielder mentioned above. Cutch is skidding again after a rough April, and his 0-for-5 performances on Sunday or Monday aren't helping. I'm still not concerned with the captain of the best outfield in baseball, as slow starts have become normal for McCutchen. However, if he can't get things going when the weather gets warm in June, I may start to ask some questions.

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