Aurelien Collin re-signed with the New York Red Bulls in early January and arrived in camp on Thursday.
"It's really good to have Aurelien back," Head Coach Jesse Marsch said. "His energy in the group is always great, he always has a smile on his face, he always comes with a lot of energy.
"We said this a lot last year, but from the day he came into the team, it was like he’d been here for years."
The 30-year-old Collin made 23 MLS appearances and contributed two assists last season after being acquired from Orlando City SC in a trade last April.