Kenny Smith, a former professional basketball player in the NBA and current sports commentator, has never publicly disclosed the reason behind his knee issues. However, many people have speculated about the cause. Some believe that Smith has bad tendinitis or was born with knock-knees, while others think that the wear and tear from playing basketball at a high level in college and the NBA has taken a toll on his knees. It is possible that Smith may have had to undergo surgery to address the issue. Despite his knee issues, Smith continues to participate in halftime races and maintains his position as a respected basketball commentator, providing insightful analysis and commentary during the games.