Texas Rangers right-handed pitcher Neftali Feliz has been scratched from his scheduled rehab start for Triple-A Round Rock at Memphis on Sunday because of discomfort in his right elbow. He will be evaluated further.

Feliz went on the disabled list in mid-May because of an inflammed ulnar collateral ligament and was later moved to the 60-day disabled list.

Feliz, 24, was set to make his fourth rehab start (third in Triple-A) in hopes of returning to the club either after Sunday's start or following one more outing. He allowed a hit and a walk with three strikeouts in three innings pitched in his last start on July 24 and was set to increase his workload even more Sunday.

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This will certainly impact some of the club's plans. A look:

* They stretched out Alexi Ogando on Friday with the idea that he could shift to Colby Lewis' spot in the rotation if the club didn't acquire anyone at the trade deadline. That decision was going to be made easier if Feliz was available to go to the bullpen. Still, Ogando could make the shift, but the bullpen wouldn't be quite as strong.

* Does this alter the Rangers' deadline approach? Well, we know they want a starting pitcher. The question is whether one of the good ones left will be on the market for a price they are willing to pay -- see Miami Marlins' Josh Johnson and Tampa Bay's James Shields. But the Rangers have concerns about Johnson's health and with the Rays so close to the wild card and with Shields' team-friendly contract, it's unclear they'll part with him. But perhaps Texas may feel an even greater need to bolster the bullpen, allowing Ogando's shift to the rotation to be made a bit easier.

* For now, Scott Feldman remains in that spot and pitches today. He pitched well his last time out but has been inconsistent, making it unlikely he's a long-term option for the spot down the stretch. But he could prove to be a critical long reliever for this team in August and September.