Incoming Florida freshman Olivier Rioux is set to be the tallest player in college basketball history at 7-foot-9. Rioux, who just graduated high school, is still growing as his previous listed height was 7-foot-7. Rioux is also the world's tallest teenager and has a shoe size of 20. At 8 years old, he was already over 6 feet tall and was almost 7 feet tall by the time he was in 6th grade. His father is 6-8 and his mother is 6-2. Rioux is from Quebec and is set to play basketball for the Florida Gators. He is listed as 7-9 on their website, weighing 290 pounds.