The Phillies added four prospects -- three of them pitchers -- to the 40-man roster Tuesday before the deadline to protect them from selection in the Rule 5 draft.
Righthanders Trevor May, Jonathan Pettibone, Ethan Martin and outfielder Zach Collier are the additions. They push the Phillies' 40-man roster to 38 players.
May, Pettibone and Martin were locks for inclusion. May, 23, entered 2012 rated as the organization's top prospect by many but stumbled to a 4.87 ERA at double-A Reading. Pettibone, 22, finished the season at triple-A Lehigh Valley to rave reviews. Martin, 23, was acquired in the Shane Victorino trade and posted a 3.18 ERA in seven starts with Reading.
All three of those young starters could be in the Lehigh Valley rotation come April.