Randall Delgado (SP, ARI)

The Mechanic - RotoBaller

Delgado has been very solid since getting the call to be Arizona's 5th starter, and his high-upside profile should have you paying attention now. He hasn't allowed more than 3 ER in 5 starts, and has a 25:4 K:BB ratio in 27 IP over that span. He had his strongest outing yet on Wednesday going 7 IP with 9 Ks while allowing just 2 ER, 7 hits and 0 walks. He's only 2% owned in Yahoo! leagues but that should rise quickly at this point.