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8/5/2014 6:28 P.M. ET

Marte returns from DL; Alvarez to bereavement list

PITTSBURGH -- The Pirates activated outfielder Starling Marte from the seven-day concussion disabled list Tuesday. Third baseman Pedro Alvarez was placed on the bereavement list to make room for Marte on the roster.

Marte has not played for the Bucs since July 21, three days after he was hit in the helmet with a fastball from Rockies reliever Adam Ottavino. The Bucs' everyday left fielder led off and played center field in his return Tuesday night against the Marlins. Marte will man center for however long it takes Andrew McCutchen to recover from a fractured rib.

The 25-year-old appeared twice after the hit to the head, but recurring complications forced him to the DL. He made three rehab starts with Triple-A Indianapolis in the last three days, going 1-for-12 (.083) with a double.

"No repercussions or effects of what he was feeling physically," Pirates manager Clint Hurdle said of Marte's rehab. "He seemed to be in a good place physically. At least he got to see some pitches, he got to go out to play defense. We got him in tow here, we'll run him out to center field and see what he can bring tonight."

In his third Major League season, Marte is hitting .255 and has a team-best 21 steals in 86 games.

Meanwhile, Alvarez will miss at least three games, and Hurdle did not know when the third baseman would rejoin the team. Hurdle also did not give a reason for Alvarez's placement on the bereavement list, calling it a personal matter.

Alvarez has seen his playing time decrease lately because of an unpredictable arm. Alvarez leads the Majors in errors with 24 -- 23 of which have been throwing errors -- and six of them have come in his last 11 games.

Alvarez started just once in the final three games against the D-backs and was removed from that game in the sixth inning after an error. He is hitting .234/.321/.401 this season, with 15 homers and 49 RBIs.

Stephen Pianovich is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.