ORLANDO, Florida (Ticker) -- If the college basketball world did not take note of Xavier last week, it will now.
Lionel Chalmers scored a career-high 31 points and Xavier used some outstanding long-range shooting to surprise second-seeded Mississippi State, 89-74, in the second round of the Atlanta Region.
Xavier (25-10) turned some heads last Thursday when it handed Saint Joseph's its first loss in lopsided fashion in the quarterfinals of the Atlantic Ten Conference tournament. On Sunday, the Musketeers proved that the win over the Hawks was no fluke.
Xavier advanced to the regional semifinals for the first time since 1990 and will meet Texas on Friday in Atlanta.
"No other team in the country deserves it as much as we do," Chalmers said. "It is all about playing one game at a time. We don't worry about the 'ifs' and 'buts.' We settle our own destiny."
The Longhorns must contend with one of the hottest teams in the country. The Musketeers have won eight straight and 15 out of their last 16 games.
"It feels like we don't have anything to lose, and we feed off that and turn it into an advantage," said guard Romain Sato, who had 12 points.
Freshman Justin Doellman provided the key spark, scoring nine of his 13 points in a 61-second span on two 3-pointers and a three-point play to give Xavier a 64-54 lead with 8:45 left.
Mississippi State cut the lead to 70-63 on a 3-pointer by Winsome Frazier with six minutes left, but Xavier put the game away with a 9-0 run that included seven points by Dedrick Finn, who finished with 22.
Xavier shot 68 percent (13-of-19) from 3-point range, with Chalmers and Finn combining to make 9-of-11. Anthony Myles had eight points and 14 rebounds.
Shane Power scored 16 points for Mississippi State (26-4), which last reached the "Sweet 16" in its Final Four season of 1996.
"I don't know if anybody in the country could have beaten Xavier today," Bulldogs coach Rick Stansbury said. "When you come out and your three starters from the perimeter go 11-14 from the 3-point line, you have no chance."
Lawrence Roberts, the Southeastern Conference Player of the Year, was held to 11 points, including just four in the second half.
"Mississippi State's Lawrence Roberts is one of the top five players in college basketball so we had to play great position defense," Xavier coach Thad Matta said. "We had to challenge shots and we got rebounds."
The Bulldogs led by as many as 10 points in the first half, but the Musketeers fought back and took their first lead at 31-30 on a 3-pointer by Chalmers with 1:42 left. Finn later connected on a heave from beyond midcourt to give the Musketeers a 34-33 halftime lead.
"Every time we tried to make a run, they made their own run," Bulldogs center Branden Vincent said.