Detmers allowed five runs (four earned) on eight hits and two walks while striking out seven over five innings in a no-decision versus the Cardinals.
Detmers (3-4) was hit with the loss against the Royals on Thursday, allowing six runs on seven hits and two walks while striking out five over five innings.
Detmers (1-0) earned the win Sunday, allowing one run, two hits and three walks over five innings against the Orioles. He struck out seven.
Detmers is not listed as Sunday's starter against the Athletics.
Detmers (illness) is listed as the Angels' probable starting pitcher for Wednesday's game against the Rays.
Detmers was scratched from Sunday's start against the Tigers due to an illness, Sam Blum of The Athleticreports.
Detmers did not factor into the decision Tuesday, allowing two runs on nine hits and one walk over 6.2 innings against the Orioles. He struck out five.
Detmers did not factor into the decision Wednesday, allowing two runs on four hits and three walks over four innings against the Phillies. He struck out three.
Detmers (2-8) took the loss Saturday, allowing two runs on three hits and two walks over 4.2 innings in a 6-1 loss to the Blue Jays. He struck out five.
Detmers will start the Angels' final game of the first half on Saturday against the Dodgers, Jeff Fletcher of The Orange County Register reports.