Daniels had positive updates on pitchers Colby Lewis (forearm) and Martin Perez (wrist) –- who are expected to throw live batting practice this week -- but also found out the extent of Joakim Soria's latest setback.
Perez is scheduled to throw Tuesday and, if all goes well, would pitch some extended training this weekend.
"Based on how he feels there, he can go on a rehab assignment after that," Daniels said.
Lewis, meanwhile, is scheduled to participate in two sessions this week.
"If all goes well, [Colby] would be in a game next week," Daniels said. "Everyone would welcome having Colby back. We're not going to delay it, either."
A precautionary MRI exam on Soria revealed a Grade 1 strain of the right pectoral muscle. Soria, who is recovering from Tommy John ligament replacement surgery, won't be able to throw for two or three weeks.
"Realistically, it's going to push back his ETA to the big leagues by approximately a month," Daniels said. "We were hoping late May, but now we're looking closer to July 1.
“If there's a silver lining, not that we're looking for one here, it's another month for the arm."
Other Rangers notes
--Nick Tepesch has a visible scrape on his right wrist, but he expects to make his scheduled start Thursday in Minnesota. The right-hander felt as if he could continue pitching Saturday after being struck by a liner off the bat of Seattle's Jesus Montero, but he was pulled for precautionary reasons. "It's not too bad," said Tepesch, who threw his scheduled bullpen duty Monday. "It's not even bruised. It could have been a lot worse."
--Daniels said he expected to find out Tuesday about a makeup date for the April 17 game against the Chicago Cubs that was postponed due to rain. May 6 and May 9 are possibilities, with the Rangers scheduled to play a two-game series in Milwaukee beginning on May 7.