ALLENTOWN — The Phillies opened their minor-league season with a starting rotation at triple-A Lehigh Valley that included familiar names.
Zach Eflin and Drew Anderson had pitched in the big leagues. Tom Eshelman had won the Paul Owens Award. Cole Irvin had pitched well last season at double A. But it was the youngest pitcher and the rather unknown, recently acquired righthander Enyel De Los Santos, who emerged for the IronPigs in the season’s first month and made himself a prospect.
De Los Santos, who won’t turn 23 until December, enters Friday’s start at Rochester with a 1.