PEORIA, Ariz. -- Cha Seung Baek, scheduled to be the Padres' No. 3 starter this season, will likely miss one start after suffering a strained right forearm in Sunday's game with the Dodgers.

Manager Bud Black said Monday that Baek is a candidate for the disabled list and that the right-hander's scheduled start on April 8 against the Dodgers at PETCO Park is in peril.

"He got treatment today but he's going to be shut down for at least a week," Black said. "We'll let this strain heal. It does put his first start of the season in jeopardy."

Baek suffered the injury in the fourth of his start Sunday and after throwing three scoreless innings. He allowed a two-run home run to Matt Kemp and soon after complained of tightness in his forearm.

San Diego head trainer Todd Hutcheson referred to the injury a "strained flexor pronator mass" and that, in his opinion, it was a mild strain. Still, the team will use caution moving forward.

"Anytime a pitcher has pain in his elbow or shoulder," Black said, "I'm more concerned than if it's in a hamstring or pull."

Black said the Padres could cover Baek's loss, even if it's only for a week, with internal candidates. That means Walter Silva, considered to have a strong shot to make the team as the No. 5 starter, is likely on the team.

It also means newcomer Shawn Hill, who signed a Minor League deal a week ago, could make a start in place of Baek, though he would not likely assume Baek's spot for April 8, rather later in the season-opening homestand, as he needs time to get stretched out further.

Hill threw 35 pitches in his Padres debut on Friday against the Oakland A's.

Meanwhile, general manager Kevin Towers continues to look for pitching help, either through the waiver wire, a trade or, more likely than not, adding a pitcher who is out of options with his current team. The Padres have interest in Rays pitcher Jeff Niemann, though the Rays are asking for too much in the way of prospects.