ARLINGTON, Texas -- Darren O'Day is closer to return to the Rangers much-maligned bullpen. The sidearm-throwing righty was eligible to come off the 60-day disable list Sunday, but will pitch at least one more outing Monday for Triple-A Round Rock.

"So far, so good," manager Ron Washington said. "He's getting outs. He's throwing again [Monday] and hope [the ball] continues to move."

O'Day hasn't reported any trouble in his left hip. He had surgery in late April to repair a partial tear.

"No pain," Washington said. "Definitely nothing wrong with the hip. The hip has not been a problem. It's just getting in pitching shape, consistently doing what you want to do with the baseball, using all his pitches, fielding his position -- just those things."

Of the legion of Rangers pitchers rehabbing in the minors, O'Day should be the first one back. Washington was non-committal on whether O'Day could return during the Houston series beginning Tuesday. Other pitchers are getting close.

"Tommy Hunter is coming along fine," Washington said. "[Scott] Feldman got up to 88 pitches [Saturday] night, so we want him to get past 100. We're moving along pretty good."