L.A. had a practice scheduled ahead of its flight to Dallas on Tuesday afternoon.
Rather than take the court, team members were directed to take two tests — a rapid test and a PCR — before meeting at the airport for the trip once returning a negative result, sources told ESPN.
The Bulls, who had two games postponed this week after 10 players were out because of the virus, are scheduled to host the Lakers on Sunday in Chicago.
Horton-Tucker is the second Lakers player to enter into the health and safety protocols this season after LeBron James spent about 48 hours away from the team because of a false positive test last month.
The third-year guard missed the first 13 games of the season after undergoing surgery on his right thumb during training camp. He had started to find his rhythm, starting the past six games for L.A. and putting up 19 points and six steals in Sunday’s win over Orlando.
The Lakers could also be without Anthony Davis for Wednesday’s game against the Mavericks. Davis, who missed the past two games with soreness in his left knee, is listed as questionable for the Mavs game.