The Twins have returned to a 12-man pitching staff for the start of the second half, as expected.

The club announced Wednesday that they have selected the contract of right-handed pitcher Kevin Mulvey from Triple-A Rochester and to make room on the roster for Mulvey, they have optioned catcher Jose Morales to Rochester.

Mulvey was 3-6 with a 3.93 ERA in 17 starts for the Red Wings this season. He’s struck out 81 batters in 103 innings while walking just 31. The 24-year-old pitcher was acquired by the Twins from the Mets in the Johan Santana trade.

Morales had been the Twins third catcher. In three stints with the team, he had batted .343 in 32 games with four doubles and four RBIs.