SAN DIEGO -- The Padres placed struggling right-hander Jered Weaver on the 10-day disabled list Saturday with left hip inflammation and recalled right-hander Jose Valdez from Triple-A El Paso.
Valdez took over for starter Luis Perdomo in the fourth inning of Saturday night's 9-1 loss to the D-backs and impressed in his Padres debut, allowing just two hits and striking out three over three scoreless innings.
Weaver allowed seven runs in two-thirds of an inning in Friday's 10-1 loss to the D-backs, the shortest non-injury outing of his career. The 34-year-old veteran has a 7.44 ERA and leads the National League with 16 home runs allowed.
"He's had left hip inflammation for some time," Padres manager Andy Green said. "He's been battling and hasn't been at full health, and it's something for the last couple years he's battled. He just doesn't feel like he has the freedom to pitch the way he can pitch."
Green said that a replacement for Weaver's spot in the rotation, which is due to come up Thursday against the Mets, is still to be determined.
The Padres have an off-day Monday before traveling to New York, and Green mentioned that could play a role in how the Padres fill the spot for the time being. They wouldn't need a fifth starter until May 27.
One player who won't be filling Weaver's spot will be Rule 5 Draft selection Miguel Diaz. Green has stated in the past the team hopes to look into Diaz, who's worked 19 2/3 innings in relief this season, as a starter in the future.
"It won't be Diaz at the present time," Green said. " At some point in time, Diaz will be a possibility."
Trevor Cahill, who's on the 10-day disabled list with a shoulder strain, was expected to play catch Saturday and was able to pass his manual-resistance workouts. He's eligible to come off the disabled list Wednesday.
Weaver is not expected to return to the team when he's eligible to come off the disabled list in 10 days.
"I think it'll be a little more than 10 days, for sure right now," Green said. " We're putting a strength progression in place for him right now. … We'll just take it day by day and see how he's able to build back up the strength."

Padres executive chairman Ron Fowler said to The Mighty 1090 AM on May 10 that Weaver was on a "short leash" after a start in which he allowed seven runs in three innings against the Rangers. He had a quality start against the White Sox last Sunday before being knocked around by Arizona on Friday night.
Valdez, 27, was claimed off waivers from the Angels on May 10 and has a 4.59 ERA in 33 1/3 career Major League innings. The Padres used five relievers, including shortstop Luis Sardinas, to close out Friday's loss.
"He gives us some coverage," Green said. "As hard as the guys were worked yesterday, we needed an extra arm out there."