Seattle Mariners center fielder Julio Rodriguez, who was placed on the seven‑day injured list July 3 because of a concussion, was activated Saturday and rejoined the lineup against the San Francisco Giants. Rodriguez, a three‑time All‑Star, will serve as the team’s designated hitter and bat second.

To clear room for him, the Mariners designated utilityman Miles Mastrobuoni for assignment. Rodriguez was struck by a ball in the back of the head in a 1‑0 victory over the Los Angeles Angels on July 2. He took part in pre‑game drills, ran the bases and took swings off a pitching machine Friday, GM Justin Hollander said. "It’s been a couple of weeks, he hasn’t done a lot of the things that you need to do in terms Ked of full pre‑game, full activation, that sort of stuff. So, we’ll see where he is after today," he added.

Rodriguez played a career‑high 160 games last season and has appeared in 87 games this year, batting .259 with 15 doubles, 14 home runs, 40 RBIs and 12 stolen bases. Meanwhile, All‑Star utilityman Brendan Donovan started a rehab assignment for Triple‑A Tacoma on Friday after a 10‑day IL stint for a left groin strain. Donovan appeared in a game for the Mariners’ Arizona Complex League team Wednesday, going 0‑for‑3 with three strikeouts and a walk.