In the meantime, d'Arnaud is at home in California, where he's rehabbing with his personal trainer.
"He’s doing well. It’s just aggressive strengthening, range of motion because Travis really wants to get back out there and hit the ground running," agent Joel Wolfe said.
It's not clear what his plan would be before rejoining the Mets, but a stint in Port St. Lucie and the minors is likely.
"I know it was envisioned he would only be here for a short stint, more in like the couple-weeks range, and if all goes we’ll just get him going and get him back out there soon," Wolfe said.
d'Arnaud was hitting .196 on the season with one RBI and 10 strikeouts. In his absence, catcher Kevin Plawecki has done slightly better, hitting .222 with a home run and seven RBIs.
d'Arnaud's shoulder was a big issue this year; he threw out only three of 17 baserunners against him; his career average is 23 percent; below the league average of 29 percent. Last year, when d'Arnaud's shoulder was healthier, he threw out 33 percent of runners who tried to steal on him.
d'Arnaud has been marred by injuries during this career, and the shoulder injury was just the latest. Last year, d'Arnaud went on the disabled list twice, missing roughly two months. When he was healthy last year, he hit .268 with 12 home runs and 41 RBIs.