Athletics' Luis Medina: Using crutches after knee sprain

Medina (knee) was getting around on crutches in the Athletics' clubhouse Wednesday, Martin Gallegos of MLB.com reports.

Medina had to depart Monday's appearance against the Reds due to a right knee sprain, and while there's no word yet on how long he'll be sidelined, it would appear the absence could be a lengthy one. The 24-year-old was competing for a spot in the Athletics' rotation.