Philadelphia 76ers coach Doc Rivers tested positive for COVID-19 and has entered the NBA's health and safety protocols, sources told ESPN.

Assistant coach Dan Burke will serve as the acting coach, beginning with the Sixers-Brooklyn Nets game Thursday in New York, sources said.

Two more Sixers players entered into the protocols Thursday: guards Myles Powell and Tyler Johnson.

Rivers joins NBA coaches Michael Malone (Denver Nuggets), Frank Vogel (Los Angeles Lakers), Monty Williams (Phoenix Suns), Billy Donovan (Chicago Bulls), Chauncey Billups (Portland Trail Blazers) and Mark Daigneault (Oklahoma City Thunder) in the COVID-19 protocols.