The Texas Rangers placed RHP Yu Darvish on the disabled list with right elbow inflammation, retroactive to Sunday August 10.

Darvish said the elbow did not bother him during his last start in Houston Saturday, but rather he began to notice the pain while playing catch Monday. Darvish is expected to undergo further testing. Thursday afternoon, Darvish is expected to speak with the media.

Yu reported soreness, so the club had him examined by Dr. Keith Meister. Daniels said that he doesn't believe the ulnar collateral ligament (the ligament associated with Tommy John surgery) is the problem for Darvish.

'Dr. Meister felt as if it was in the muscle, the pronator, he called it flexor pronator tendinitis,'Daniels said. 'Yu had expressed he could pitch if we were in a different spot, if it were a meaningful game tomorrow Yu would be good to go. But we all agreed it was better to be cautious, and are hoping it'll just be a two start DL, but we'll know more tomorrow.

'Based on the observation, Dr. Meister did not feel as if it was the ligament' said Daniels. 'Obviously that was the first question we all had, and Yu felt comfortable about that too based on the discomfort.'

The club will await the results of an MRI before making a decision on whether to shut Darvish down for the year.

It should be noted that the 'elbow inflammation' diagnosis does not bode well for Rangers pitchers in 2014. Martin Perez, Tanner Scheppers and Alexi Ogando each went on the 15-day DL with the same diagnosis earlier this year, and won't pitch again in 2014.

This is Darvish's second stint on the disabled list of the 2014 season, as he sat out the beginning of the season with stiffness in his neck.

Claudio promoted

The Rangers have purchased the contract of LHP Alex Claudio from Triple-A Round Rock. Claudio will join the team Wednesday night, and wear number 65.

Claudio has spent time at High-A Myrtle Beach, Double-A Frisco, and Triple-A Round Rock this year, and will be making his major league debut with the Rangers. In the minors, Claudio held a 6-3 record on the season with a 1.66 ERA.

Kate Morrison wrote on Alex Claudio and his signature pitch, the change-up, in the latest 'Top Tools' installment:

Alex Claudio's changeup isn't just the best in the system, it's one of the best pitches to view live. The screwball-esque pitch usually comes in anywhere from 64 to 69 mph, and the visual of hitters flailing over it tells you almost everything you need to know about it.

Robbie Ross will be recalled from Triple-A Round Rock Thursday, and will start Thursday night. A corresponding roster move will be made at that time.

Landon Haaf contributed to this report.

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