Koerner was a 2015 17th rounder out of Clemson. I like those arms out of the big baseball schools. He had a great start to the season, but has been on the DL since May. I can't find much about his injury, but hey, hopefully it's a good sign that he signed my card, right?
I've done pretty well getting Rookies App customs signed by minor leaguers. I think I need to make a new batch for all of these new Yankees prospects!
