MILWAUKEE — Milwaukee Brewers All-Star closer Corey Knebel was placed on the 10-day disabled list and is expected to miss four-to-six weeks because of a strained left hamstring.

Knebel was walking with a limp Friday, a day after he was injured while pitching against St. Louis.

He had a 1.78 ERA and 39 saves in 45 chances last year, supplanting Neftali Feliz as closer in early May. Knebel struck out 126, tying Boston's Craig Kimbrel for the most among major league relievers, and set a big league record by opening the season with at least one strikeout in 45 consecutive games.

Knebel blew a save chance on opening day, struck out the side in getting a save at San Diego the following day, then didn't get in a game up Thursday. He entered in the ninth inning with the Brewers trailing by six runs.