"We know every game is important," Chavis said. "But this one is big."
At stake for the Raiders is a chance to finish in the top four of the Big 12, which would give Tech a first-round bye in next week's conference tournament.
A win on Saturday will help Tech's chances, but the Raiders need help from other teams.
Kansas and Oklahoma have already clinched the top two spots in the conference.
Entering the final regular season game, four teams (Tech, Oklahoma State, Texas and Missouri) are tied for third place at 9-6.
Tech's easiest path to a bye would be a victory over Baylor and an Oklahoma State loss against Texas A&M on Saturday.
If Tech wins and any two of the aforementioned teams lose, Texas (at Iowa State), Missouri (vs. Kansas) and OSU, Tech will get a third seed.
If Tech loses, or if all four teams win, Tech is looking at a No. 5 seed and no bye.
The Raiders are coming off a loss to Texas on Tuesday in Austin, and forward Pawel Storozynski said it was difficult to swallow, because a win would have put Tech in the driver's seat for a first-round bye.
"We had the cards in our hand," Storozynski said. "And then we lost them."
Chavis said Tech let too many games slip away this year, including Tuesday's loss.
"I wish we had a chance at a better seed," Chavis said. "I don't like where we are at right now. But that is how it plays out, and we have to be ready and prepared to play whoever (in the Big 12 Tournament)."
Storozynski said Tech simply didn't show up vs. the Longhorns.
"We played like we weren't even there," he said. "We could've put five dolls out there, and it would have been the same thing. It was terrible."
Both Storozynki and Chavis said won't worry about the other third place teams until after they face Baylor (14-14 overall, 4-11 Big 12).
"We have to put our attention on Baylor," said Storozynski." They are going to show up. We beat them pretty hard (90-65) last time, and they will be fired up."