Rosso will be part of the Phillies' 60-man player pool this season.

Rosso breezed through every minor-league level with fairly strong numbers until reaching Triple-A Lehigh Valley last season, where he stumbled to a 5.50 ERA in 14 starts. He seems to still need a bit more seasoning in the minors, though he may make his big-league debut at some point this season anyway due to the lack of minor-league games.