Brewers' Corey Knebel to make Tommy John decision Friday

Milwaukee Brewers reliever Corey Knebel (elbow) will decide Friday whether to undergo Tommy John surgery or try to rehab his UCL injury.

What It Means:

Knebel has been pitching with a slight tear of the UCL in his right elbow for the last four years and reaggravated the injury this spring. Either way, the 27-year-old right-hander isn't expected back anytime soon. Josh Hader secured a six-out save in the Brewers' 5-4 season-opening win over the St. Louis Cardinals on Thursday.

Knebel turned in a 3.58 ERA and 88 strikeouts with 16 saves over 55 1/3 innings last season.