The Los Angeles Clippers beat the Dallas Mavericks 110-107 Tuesday night for their fourth straight win, while Dallas Mavericks ended a four-game winning streak and also lost a key piece in center Dwight Powell just as they welcomed back Kristaps Porzingis.

Powell went down to a non-contact, right Achilles tendon injury in the first quarter, and though he will have an MRI on Wednesday, the team is fearing a worst-case scenario.

“Guys like him define the culture we want here,” Dallas coach Rick Carlisle said. “It doesn’t get much tougher than this, if it ends up being what we fear it might.”

Luka Dončić had 36 points, 10 rebounds and nine assists for Dallas.