The Rays activated right-hander Chris Archer from the disabled list and optioned righty Andrew Kittredge on Monday afternoon.
Archer, who's set to start the series opener against the Tigers at Tropicana Field on Monday night, had been sidelined since June 2 with a strained left abdominal muscle. He was 3-4 with a 4.24 ERA and a 1.34 WHIP over 76 1/3 innings in 13 starts before the injury.