SAN DIEGO — Right-hander Chris Young is heading to the 15-day disabled list, meaning the struggling Padres' top two pitchers will be out of action.

Young has been bothered by inflammation in his pitching shoulder for his last four starts. He'll go on the DL on Friday. He had a second cortisone shot on Wednesday night.

Ace Jake Peavy was placed on the DL on Saturday, a day after learning he would be sidelined at least a month because of a strained tendon behind his right ankle.

The Padres have lost five straight and 13 of 17, as well as a major league-record 13 straight interleague games.