Houston Rockets guard John Wall and center DeMarcus Cousins have tested negative for the coronavirus, but they are among a group of players sent home Wednesday afternoon because of a positive test of another teammate, sources tell ESPN's Adrian Wojnarowski.

The Rockets' contact tracing is connected to testing on rookie Kenyon Martin Jr., sources tell ESPN. Martin is on the team injury report now as "not with team, self isolating."

A group of Houston players -- including Martin, Wall and Cousins -- were away from the facility at an apartment getting haircuts, sources said. That has led to the contact tracing on Wall and Cousins as the team awaits more testing results on Martin, sources said.

Cousins is listed as questionable for Wednesday's game with an ankle sprain.

Rookie forward Jae'Sean Tate also is among the group of players sent home due to contact tracing, a source tells ESPN's Tim MacMahon.

The Rockets disclosed Tuesday that guard Ben McLemore is in self-isolation and out for Wednesday night's regular-season opener against the Oklahoma City Thunder. McLemore tested positive for the coronavirus days ago, sources said.

The Thunder told ESPN that they have not heard anything from the league about the status of Wednesday's game.

Information from ESPN's Tim Bontemps was used in this report.