Major League Baseball
<    July    >
S M T W T F S
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31

Oakland's Balfour out 4-6 weeks with knee injury

Phoenix, AZ (Sports Network) - Oakland Athletics manager Bob Melvin announced Thursday that closer Grant Balfour will undergo arthroscopic surgery to repair a meniscus tear in his right knee.

The A's expect Balfour to be back in 4-to-6 weeks following Thursday's procedure.

"I feel good about getting it done now," Balfour said in a statement. "It will allow me to get ready for game one of the season."

Balfour experienced some knee soreness near the end of 2012, a season in which he went 3-2 with a team-leading 24 saves and a 2.53 ERA. The right-hander wasn't worried because the soreness went away during the offseason, but an MRI exam taken Thursday revealed the tear.

02/14 12:29:31 ET