Giannis Antetokounmpo left Game 1 with a lower back contusion and will not return, the Milwaukee Bucks announced.
X-rays on Antetokounmpo's back returned "clear," according to Mike Budenholzer.
"We'll monitor him and see how he wakes up [Monday]," said Budenholzer.
Antetokounmpo initially suffered the injury after taking a charge from Kevin Love in the first quarter.
Antetokounmpo briefly returned to the game in the second quarter before checking back out for good.