The Chicago Cubs have placed pitcher Carlos Zambrano on the 15-day DL.
Zambrano tweaked his hamstring yesterday while beating a bunt in the fifth inning.
Per the Chicago Sun-Times, GM Jim Hendry expects Zambrano will "probably need two to two-and-a-half weeks" to recover.
The Cubs recalled infielder Bobby Scales from Triple-A, but they will likely call up a starter from the minors to make what would have been Zambrano's start on Friday at Milwaukee.
Per Hendry, one pitcher it won't be is Jeff Samardzija, who has been working relief for the past 11 days.