Another hard-throwing young arm entered the bullpen mix in 2015, and while the numbers weren't there, he flashed potential.
Grade: B-
2015 Statistics: 4.02 ERA, 8.6 K/9, 2.9 BB/9, 15.2 IP (MLB), 4.27 ERA
9.7 K/9, 2.2 BB/9, 52 2/3 IP (AAA)
2016 Contract Status: 40-man roster, pre-arb
It was a quick rise to the major leagues for righty reliever Nick Rumbelow. Taken in the seventh round of the 2013 MLB Draft, Rumbelow officially signed with the Yankees on June 23, 2013. Fast forward two years to the day on June 25, 2013, and he was making his MLB debut against the Phillies; not too shabby.