Cubs rookie Kyle Schwarber is expected to miss three to five days because of a mild rib cage strain. The left-handed hitter hopes to be in the lineup Monday when Chicago opens a three-game series at St. Louis. New York put first baseman Mark Teixeira on the 15-day disabled list because of a bruised right shin, leaving the Yankees without a prime power source as they chase Toronto for the AL East lead. Minus the 35-year-old, who leads the team with 31 home runs, the Yankees will likely play rookie Greg Bird at first base. [...] the Yankees said CC Sabathia has pitched a simulated game without any pain and could rejoin their rotation Wednesday. Cleveland scratched right-hander Corey Kluber from his scheduled start against the Tigers on Friday night because of a strained right hamstring. Kluber last pitched Aug.