This will be the return to the St. Louis Cardinals for Marco Gonzales who underwent Tommy John surgery last year. It was in February that he began to rehab and work his way back to throwing. Information on that can be found here.
The young lefty has shown promise since being drafted by the St. Louis Cardinals as the 19th overall pick in 2013. In fact, since recovering from his torn UCL he has been named the number-19 prospect in the organization according to MLB Pipeline.
After a year off due to surgery, the organization wanted to start Gonzales slowly, so he started the year advanced-A Palm Beach.