Former NBA guard Deron Williams shows up to watch Michigan State vs. Illinois basketball

Deron Williams is one of the greatest players in Illinois men's basketball history, and he showed up to watch Tuesday's men's basketball game between the Illini and Michigan State in Champaign, Illinois.

Williams led Illinois to the 2005 NCAA title game against North Carolina.

He was then the No. 3 overall pick in the 2005 NBA Draft by the Utah Jazz. Williams helped the United States win gold medals at both the 2008 and 2012 Olympics.

Williams played for Illinois from 2002-05. He was named to the All-Big Ten First Team in 2003-04 and 2004-05.

Williams played in the NBA from 2005-17, and he made the NBA All-Star game three times.

Michigan State defeated Illinois 70-69.

No. 25 MSU improved to 17-8 overall and 9-5 in the Big Ten. The No. 23 Fighting Illini went to 16-8 overall and 8-5 in the Big Ten.

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Brad Underwood is the Illinois Fighting Illini men's basketball head coach. Tom Izzo is the Michigan State men's basketball head coach.

Erik Hall is the lead digital producer for sports with the USA Today Network. You can find him on Twitter @HallErik.