Kremer (forearm) threw a bullpen session Tuesday, Matt Weyrich of The Baltimore Sun reports.

Kremer (forearm) played catch Tuesday but is unlikely to make his next scheduled start, Steve Melewski of MASNSports.com reports.

Kremer allowed three runs on seven hits and two walks while striking out five over six innings in Sunday's loss to the Astros. He did not factor into the decision.

Kremer (5-9) picked up the win in Wednesday's 4-1 victory over the Nationals, allowing one run on five hits and two walks over six innings. He struck out three.

Kremer (4-8) yielded four runs on six hits and two walks over five innings Friday, striking out two and taking a loss against Cleveland.

Kremer (4-6) allowed three runs on five hits and three walks across 5.1 innings Sunday, striking out two and taking a loss against Texas.

Kremer did not factor into the decision Sunday, allowing two runs on four hits and two walks over 4.2 innings against the Yankees. He struck out four.

Kremer (4-4) picked up the win over the Mariners on Wednesday, allowing two hits and two walks over five shutout innings while striking out eight.

The Orioles activated Kremer (triceps) from the 15-day injured list Wednesday.

Kremer (triceps) is expected to be activated from the 15-day injured list and start Wednesday against Seattle, Andy Kostka of TheBaltimoreBanner.com reports.