MIAMI -- When the Marlins begin their seven-game road trip on Monday at Atlanta, outfielder Lewis Brinson will be heading out of town to get ready to start his rehab assignment.
On the disabled list since July 4 with a right hip bone bruise, Brinson is expected to see game action on Tuesday. The club has yet to finalize if it will be with Double-A Jacksonville or Class A Advanced Jupiter.
Wherever he winds up, Brinson will be back in a game for the first time since July 3. The 24-year-old was the Marlins' Opening Day starter and regular in center field until he experienced discomfort in his hip.
Acquired from the Brewers as part of the Christian Yelich trade, Brinson is regarded as a core player of the Marlins' future. But his rookie season has been a learning experience, as he is batting .186 with 10 home runs and 30 RBIs in 84 games.

The Marlins are hopeful Brinson gets back to the big leagues in a few weeks so he can get about 100 more at-bats before the season ends. Manager Don Mattingly said Brinson has been making progress in the work he's doing at the plate.
"I think he's been able to start where we left off in drill work," Mattingly said. "We're seeing good things in that. Obviously, live [action] is always different. We're looking forward to him doing that."
Running the bases and moving around in the outfield also has gone smoothly.
"He's been fine," Mattingly said. "He's passed all the tests. After [he goes on rehab assignment], we'll make a decision."
When Brinson rejoins the Marlins, he's expected to move back into center field. Currently, rookie Magneuris Sierra is handling more of the action in center. But the team plans on giving the 22-year-old some work in left field.

"He's been in left field some," Mattingly said. "He's played all over and less [in] left. We've done a little work in left to get him comfortable. Probably before Brins gets back, we'll probably get Mags a game out there in left to get him comfortable out there."
Worth noting:
• Right-hander Merandy Gonzalez will be called up from Jacksonville and start one of the two games in Monday's day-night doubleheader in Atlanta. Miami hasn't announced exactly which game. Pablo Lopez will start the other. Gonzalez will be the 26th man on Monday, and he will go back to Jacksonville after the game. The 22-year-old has made seven appearances, all in relief, for the Marlins, and he is 2-0 with a 5.71 ERA. He last was with Miami on June 17 in Baltimore.
• All-Star catcher J.T. Realmuto was given a day off from starting on Sunday, with John Holaday getting the nod behind the plate in the series finale against the Mets. For Monday's doubleheader, Mattingly is weighing giving Realmuto a start behind the plate in one game and at first base in the other game.