Per a Jeff Wilson tweet, Rangers' relief pitchers Alexi Ogando and Koji Uehara will be added to the active roster on Tuesday:
#Rangers have decided that Koji Uehara does not need another rehab outing. He and Alexi Ogando will join club Tuesday.— Jeff Wilson (@JeffWilson_FWST) July 16, 2012
Alexi Ogando went on the disabled list on June 11 after straining his right groin running to first base while playing under National League rules in an interleague game. Koji Uehara was put on the disabled list with a strained lat a few days later to make room for Justin Grimm on the active roster.
The Rangers will need to make two moves in order to clear spots on the 25 man roster for Ogando and Uehara. One move will be Yorvit Torrealba going on paternity leave -- with Luis Martinez already having been called up in place of Yoshi Tateyama when Mike Napoli was hurt on Friday, the Rangers will still have two catchers on the roster while Torrealba is gone. Martin Perez is earmarked to go down to make room for Colby Lewis, who will be activated on Wednesday, which means that either Tanner Scheppers or Michael Kirkman will be sent down to create the other open spot on the 25 man roster. My guess is that Scheppers goes down, with Kirkman staying up to give the Rangers both another lefty and another pitcher who can give the Rangers multiple innings out of the bullpen.