Brewers' Ray undergoes repair on knee tear

After a year of steady growth and improvement, the Milwaukee farm system revealed some bad news Wednesday.

Corey Ray, the fifth pick in this year's Draft and baseball's No. 27 overall prospect, underwent surgery to repair a torn meniscus in his left knee, farm director Tom Flanagan confirmed to MLB.com. The Brewers have not yet determined a timeline for his return to action.

The 22-year-old outfielder reportedly suffered the injury sliding into third base during an instructional league game, and he'll stay in Arizona to rehab at Milwaukee's training facility. Ranked the system's No. 2 prospect, Ray batted .239/.307/.370 with 20 extra-base hits and 10 steals over 60 Minor League games -- 57 with Class A Advanced Brevard County and three for Class A Wisconsin -- in his first crack at pro ball.

Before the Brewers signed him in June, Ray stole 82 bases and hit 27 home runs across three seasons for the University of Louisville, and he played in the elite Cape Cod League as a freshman. The Chicago native boasts 60-grade speed on the 20-80 scouting scale, and only his arm -- at 50 -- scores below 55.

Many players, including Royals catcher Salvador Perez and former Yankees designated hitter Alex Rodriguez, have made full recoveries from meniscus tears.