Notebook: Johnson to DL with sore back

Arizona pitcher Randy Johnson was put on the 15-day disabled list for the third time this season, sidelined Tuesday because of a sore back right before his scheduled start at St. Louis.
The 43-year-old left-hander said he doesn’t believe the injury is career-threatening.
Clearing the bases
Philadelphia Phillies’ pitcher Jon Lieber will undergo season-ending surgery on Friday to repair a ruptured tendon in his left foot. … Pedro Martinez threw a simulated game at the New York Mets’ complex in Port St. Lucie, Fla. Martinez had rotator cuff surgery last fall and hasn’t pitched in a game since. … Outfielder Ryan Freel rejoined the Cincinnati Reds, five weeks after he sustained a severe concussion. … The Chicago White Sox placed outfielder Scott Podsednik on the 15-day disabled list because of a strained left ribcage muscle. … Colorado Rockies right-hander Jason Hirsh was placed on the 15-day disabled list with a sprained right ankle. … The Angels designated right-hander Hector Carrasco for assignment and recalled right-hander Chris Resop. … The Cincinnati Reds replaced bench coach Bucky Dent with minor league manager Pat Kelly.