SEATTLE -- With pitcher Neftali Feliz not throwing for at least four weeks, Texas Rangers GM Jon Daniels and manager Ron Washington are keeping their options open for possible moves. They haven't met to discuss the situation, but Daniels said nothing is out of the question.

Daniels acknowledged that free agent Roy Oswalt is a possibility but that he's not an immediate option.

"He's not ready to go," Daniels said. "He hasn't thrown to hitters yet. It'll definitely take him some time. I don't know how much time, but he's not an immediate option."

Oswalt, 34, hasn't pitched in a major league game since Game 4 of last season's NLDS for the Philadelphia Phillies. He had a 3.69 ERA in 23 regular-season starts last year.

Alexi Ogando is also a possibility, but Daniels said he's not an option to jump into the rotation immediately. Ogando is not stretched out to be a starter, though Daniels said that wouldn't take long. The Rangers also want to look at his role in the bullpen and how it would affect its makeup.

"He's shown that he can perform at a very high level," Daniels said. "He was an All-Star starting pitcher last year. There's definitely an attractive side of putting him in the rotation, but we've got to be realistic. He's not ready to do it, sitting here today."