Miami boasts one of the league’s deepest perimeter rotations, but has seldom enjoyed it due to injury. That trend continued on Thursday night, when Heat coach Eric Spoelstra informed the media that Justise Winslow had entered the league’s concussion protocol.

Winslow, who has been developed into one of the Heat’s primary playmakers, missed Thursday’s win over the Suns with a headache. Those symptoms followed a blow to the head suffered in Tuesday’s loss to Denver.

The 6-2 Heat have seen Winslow and Jimmy Butler miss a handful of early games, yet thrived thanks to contributions from Kendrick Nunn, Goran Dragic and rookie Tyler Herro. Winslow is averaging 13.8 points, 8.0 rebounds and 4.8 assists through five games.