Treinen (hip) made a rehab appearance for Double-A Tulsa on Saturday, retiring all three batters he faced via strikeout.

Treinen blew a save in Tuesday's loss to the Padres, allowing two runs on two hits while also striking out two over an inning of work.

Treinen earned a hold against Milwaukee on Saturday, striking out one batter in a perfect inning of work.

Treinen (2-1) took the loss and was charged with a blown save Saturday against Kansas City. He allowed four runs on one hit and three walks while striking out one batter over two-thirds of an inning.

Treinen recorded his first save of the season in the first game of Tuesday's doubleheader sweep of the Mets, striking out two in a perfect 10th inning.

Treinen pitched a clean eighth inning while striking out a batter to secure a hold in Sunday's 5-1 win over Atlanta.

Treinen (chest) was reinstated from the 15-day injured list Sunday, Kirsten Watson of Spectrum SportsNet LA reports.

Dodgers manager Dave Roberts said Friday that Treinen (chest) could be activated from the 15-day injured list during the weekend series against Atlanta, Mike DiGiovanna of the Los Angeles Times reports.

Treinen (chest) has joined Triple-A Oklahoma City to begin a rehab assignment, Eric Stephen of SBNation.com reports.

Treinen (chest) faced live hitters ahead of Saturday's game against the Mets, Eric Stephen of SBNation.com reports.