ARLINGTON, Texas -- Whether the Texas Rangers will acquire a starting pitcher before the trade deadline remains to be seen. But until then -- thanks to Scott Feldman's dominant performance against the Boston Red Sox on Monday -- they at least have a band-aid to cover the gaping hole left by Colby Lewis.

Feldman threw seven innings against the Red Sox and allowed one run on seven hits and no walks. Still, Ron Washington said that the Rangers may look elsewhere on the current roster for someone to fill Lewis' position for the time being.

The primary candidate, other than Feldman, is Alexi Ogando.

"That's something we've discussed," Washington said. "If that happens, we've got to figure out how to get him stretched out. But I would say don't be surprised if it happens somewhere down the line."

Ogando has proven in the past that he can be an effective starter. He pitched well in his last start, throwing three perfect innings against the San Francisco Giants before injuring his groin trying to beat out a bunt.

"That's what I always wish. It's no secret I would like to start," Ogando said. "I just have to be ready."

Neftali Feliz, another potential starter, is making a rehab start for Triple-A Round Rock tonight. Washington said Feliz will likely need at least one more rehab start before he can rejoin the Rangers and isn't someone he is considering for the rotation in the near future.

The Rangers have set their starting rotation for the next five games in the wake of losing Lewis.

Rookie Martin Perez will start tonight in Lewis' place and Derek Holland will start Wednesday in the finale of the three-game series against the Boston Red Sox. After a day off Thursday, Yu Darvish and Matt Harrison will start in the first two games against the Chicago White Sox on Friday and Saturday, respectively.

Roy Oswalt is expected to make a full recovery after receiving an anti-inflammatory shot in his lower spine Monday and start in Sunday's finale against the White Sox. Feldman will start in the first game of the four-game series against the Los Angeles Angels on Monday.

Other notes:

* Mark Lowe (intercostal muscle) could be close to returning from the disabled list. He is expected to throw a bullpen session Thursday and make a rehab appearance Sunday or Monday.

* Koji Uehara (right lat) is progressing very slowly. He played some light catch today and said he felt good. But he is nowhere close to throwing a bullpen session.

* Holland said that he feels like he is back to where he was before landing on the DL.

"I definitely feel strong, I feel good," Holland said. "The things with injuries and everything that's happening right now, we've got to go out there and stay within ourselves. We can't try to add to much pressure to ourselves. If we just continue doing what we've been doing, we'll be alright. But for me personally, I've got to step up. That's how I feel."