Right-handers Neftali Feliz, out with a sprained right elbow, and Alexi Ogando (strained right groin) threw their second bullpen sessions on Thursday morning, tossing 35 and 40 pitches, respectively. Their sessions followed one by Koji Uehara (strained right lat muscle) on Wednesday, which was the righty's first time throwing off the mound since getting hurt on June 9.
Right-hander Colby Lewis (right forearm tendinitis) also threw from the front of the mound prior to Thursday's series finale against the White Sox.
Washington said the Rangers will discuss activating Ogando and Uehara after each throws three bullpen sessions. The manager added that Uehara's return is predicated on how the righty feels, while the club will consult its medical staff before making a decision on Ogando because of the nature of groin injuries.
"The groin can hide," Washington said. "You can throw and then you can fatigue, and there it is again."
Washington said Lewis likely won't make a rehab appearance before being activated, adding that the right-hander should be able to return when he his eligible to be reinstated from the disabled list. Lewis can come off the DL on Monday, and the Rangers will open the second half at Seattle four days later, on July 13.
The Rangers hope to begin the season's second half with four-fifths of their Opening Day rotation healthy, with right-hander Roy Oswalt in for Feliz, whom Washington said will rehab as if he's returning to the rotation.
"We'll make sure we get him stretched out, get him all the work he needs and then we'll make a determination when Neffy's ready to come back," Washington said.