“I like what I saw,” de Boer said, “and what I’ve seen in training so far is also good.” He’s shown his technique against big teams with high intensity, so we have a lot of confidence.”

Midfielder Julian Gressel and defender Michael Parkurst both said they’re still getting to know him, but are excited for the contributions he’ll make. As veterans, it’s up to them to make him feel comfortable, Parkhurst said.

“He’s a good kid and is nice off the field,” Parkurst said. “I know he’ll be a hard-worker, and he’ll fit well in our locker room. Hopefully, he’ll be able to get fit quick and provide us with some help in this stretch of games we have coming up.”

Hyndman’s addition brings depth to a roster that is still facing so nagging injuries. Both forward Hector Villalba and midfielder Ezequiel Barco are recovering from knee injuries, and De Boer said both are unavailable for Sunday’s game against the New York Red Bulls. De Boer was more optimistic about Barco, saying he may be able to start running and participate in team activities soon if a medical report on Sunday goes well. Forward Josef Martinez, the reigning MLS MVP who’s played with the Venezuelan national team in Copa America this past month, also is slated to return Sunday.

“Normally he’s quite big because everybody's counting on him,” de Boer said. “Not only our team, but also the opposite side, of course. Josef brings a spirit in the team and I love that he’s back.”