MIAMI -- For the second time this season, the Marlins will need to find ways to replace third baseman Brian Anderson, who landed on the injured list with left shoulder subluxation prior to Tuesday's 2-0 loss to the Phillies at loanDepot park. General manager Kim Ng said Anderson will miss “at least several weeks.”

Hours later, manager Don Mattingly said second baseman Jazz Chisholm Jr. was replaced in the ninth inning due to a mild right ankle sprain, which he rolled while coming around first trying to stretch his single into a double in the sixth inning. The club will reassess his injury and capabilities on Wednesday.

"You can see that last at-bat," Mattingly said of Chisholm. "He looked like he was moving OK in the field. Just when he tried to hit -- that front side, you're basically hitting against that leg, and that's when you see that thing kind of buckle. I know they taped it in-between when it happened in the next half inning. But that's when you really noticed it when he went to drive against that leg."

These setbacks come on the same day center fielder Starling Marte began a rehab assignment with Triple-A Jacksonville, and catcher Jorge Alfaro returned to the lineup.

The last time Anderson was sidelined (April 21-May 3), Jon Berti started all 11 games at the hot corner. He got the nod on Tuesday, going 1-for-3 but grounding out with two runners on in the seventh inning. Isan Díaz, who was reinstated from the IL as the corresponding roster move, has been practicing at third base since opening the season at the alternate training site. He has never appeared at that position in the Majors, but he played 14 games there during the 2018-19 Puerto Rican Winter League. Rookie José Devers did see time there during Spring Training; he is a middle infielder.

"We'll have to fill that spot with a couple of different combinations, and just have to do what we've been doing with other guys down," Mattingly said. "We're going to have to fill that role up and do enough to win games."

When asked whether the Marlins might pursue external options, with the amount of time Anderson might be out, Ng said: “We don't know about the time yet, but I think in terms of this, we're always looking for ways to get better.” Then asked whether there were Minor League alternatives, she went on to say, “Jon Berti and Isan are our prime focus.”

All 70 of Díaz's MLB games have come at second. Increasing his versatility will help him get into the lineup more consistently with Chisholm at Díaz's natural position.

"[I'm] just trying to get familiar over there positioning-wise, knowing the plays, the signs, knowing where to position myself," Díaz said last month. "It's a different slot over there -- can't really drop down to the side like I'm used -- so trying to get that arm to stay over the top over there and kind of get the ball to have some backspin and just getting used to that arm slot being over the top. But I feel great. I feel like I'm getting more comfortable over there, the more I continue to take ground balls and watch video. I continue to just get more reps, but I feel great."

Anderson experienced discomfort a few days ago on a play at second, and he aggravated it before being pinch-hit for during Monday's win, per Mattingly. Before the announcement, Mattingly told media that Anderson was "pretty sore this morning." He was sidelined from April 21-May 3 with a left oblique strain. After a slow start to the season, Anderson had found his groove during a seven-game hitting streak, batting .458 with three doubles, one homer and five walks.

According to Medical News Today, shoulder subluxation is the partial dislocation of the shoulder joint. It is often the result of a sports injury that weakens the arm muscles. Padres star shortstop Fernando Tatis Jr. sustained a similar injury, and his IL stint lasted the minimum 10 days.

“The most important thing for us right now is to give it some time to let the inflammation and the pain and discomfort subside before we can evaluate further,” Ng said.