Luis Mateo's season ends with Tommy John surgery

Mets pitching prospect Luis Mateo's season is over, after he underwent Tommy John surgery last week, according to ESPN.com. Mateo appeared in four games between Class A St. Lucie and Double-A Binghamton before suffering from elbow inflammation.

This operation will likely keep the 23-year-old Mateo out until at least next June, an unfortunate outcome for the organization's No. 4 prospect according to Baseball America. He has a 2.55 ERA in 29 appearances in the minors since his professional career began in 2011.