There was plenty of uncertainty regarding the status of the senior forward from Whitmire.
Booker spent most of the last two days with his family after his grandfather suffered a heart attack. He left his grandfather's bedside on Wednesday before returning to Clemson for the ACC/Big 10 Challenge matchup with Purdue.
He finished with 18 points and eight rebounds, both were team highs in the Tigers' 73-61 loss.
"He's had a hard two days," Brownell said.
"Basically, he was on life support," Brownell said.
Brownell didn't learn of Booker's status for Wednesday night's game until shortly before tipoff.
"I really did not know until about 6 o'clock that he was coming back. It was touch and go whether he would even come back," Brownell said. "I thought he competed very hard, probably played the best and hardest out of anybody on our team tonight."
For Booker, it was an emotional game.
"It was definitely a tough day. I just came home from seeing my grandfather in the hospital, so I had to make the trip back on the same day," he said. "I didn't really have too much time to prepare or really scout them very much, just kind of jumping into this game."
CUTigers.com Top Stories
3-22 RECRUITING RADARIn our weekly Recruiting Radar, CUTigers Recruiting Analyst Gary McDaniel updates you on the latest news and intel on the Clemson recruiting front!
CUTigers.comWednesday at 11:14 AM
TIGERS TEE OFF ON C OF CRed-hot ACC Player of the Week Chris Williams hit his 4th and 5th home runs in 8 days and Beer and Davidson also went yard, as #6 Clemson won its 16th of the last 18 games.
CUTigers.comTuesday at 7:48 PM
BROWNELL REMAINS AT CLEMSONDespite widespread speculation about Brad Brownell's job security after a disappointing season, he will remain at Clemson for at least one more season.
CUTigers.comMonday at 10:08 AM
TIGERS TAKE SERIES!!!Pat Krall allows just one run and #9 Clemson slugs its way to its 15th win in the last 17 games, taking 2 of 3 from #11 UVA!
CUTigers.comSunday at 4:31 PM