TORONTO -- Darren Oliver will return from the 15-day DL on Monday.
Oliver has been out since May 19 with shoulder soreness, but made two scoreless appearances last week with Class A Dunedin.
"He feels great, did well, no problems at all," general manager Alex Anthopoulos said. "He'll be activated tomorrow."
The 42-year-old lefty could have been activated for Sunday's finale against the Rangers, but after Saturday's 18-inning marathon in which the Blue Jays exhausted their entire bullpen, the club recalled Thad Weber from Triple-A Buffalo to provide some long-inning insurance. Toronto optioned Brad Lincoln to Buffalo after Saturday's game.
"It's just one of those things that worked out for us to give [Oliver] another day of rest," Anthopoulos said.
Although brief, this marks Weber's third stint with a big league club this season and his second with Toronto. He threw a scoreless ninth in Sunday's 6-4 loss, making his fifth appearance for the Blue Jays after pitching in three games for San Diego earlier this season.
Evan Peaslee is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.