sentences:  Illinois has one pre-tournament national championship in 1915, one retroactive national championship awarded in 1943 by the Premo-Porretta Power Poll.Illinois has appeared in the NCAA Division I Men's Basketball Tournament 31 times, and has competed in 5 Final Fours, 9 Elite Eights, and has won 17 Big Ten regular season championships.The team is currently coached by Brad Underwood, who was hired on March 18, 2017.