The Yankees will place Miguel Cairo on the 15-day disabled list after he strained his left hamstring running out a ground ball Saturday night. Cairo had been playing almost every day, filling in for injured second baseman Robinson Cano, who suffered from the same injury. Cairo is expected to hit the DL on Tuesday, when Cano is expected to rejoin the Yankees in the opener of a three-game set in Chicago. Cano is making a final rehab start with Double-A Trenton on Sunday, and batted 7-for-12 with two doubles and two RBIs in three rehab games before then. During Saturday's start, Cano tested himself physically, running at full speed.