On Thursday, the transaction became official as reliever Kiko Calero was reinstated off the disabled list. The right-hander had been out since June 18 with shoulder inflammation.

Reliever Tim Wood, who was doing a nice job, was optioned back to Triple-A. Even though Wood was sent back down, the Marlins saw promise from the right-hander. He likely will get called back up in the second half.

Calero’s return helps solidify the bullpen, which is starting to shape up. The 34-year-old has appeared in 36 games, and he will help out in a setup role, either in the seventh or eighth innings.

The Marlins also recently added veteran Brendan Donnelly. More veteran relief help promises to be on the way after the All-Star Break. On June 26, the Marlins signed right-hander Scott Williamson to a Minor League deal. Williamson last pitched in the big leagues in 2007, and he’s getting himself back into shape in Jupiter.

Shortly after the All-Star Break, closer Matt Lindstrom (right elbow sprain) may be ready to return.

Luis Ayala, who also signed a Minor League contract recently, is another relief option.

The Marlins open a four-game set with the Diamondbacks on Thursday in Arizona. In the final two games at San Francisco, Florida’s bullpen worked only one inning, so they should be rested.

– Joe Frisaro