"The allegations that I once participated in sports gambling are false," Mateer posted to X on Tuesday. "My previous Venmo descriptions did not accurately portray the transactions in question but were instead inside jokes between me and my friends. Screenshots posted online Monday night showed Mateer allegedly twice included "sports gambling" in memos for transactions on Nov. 20, 2022, while he was a freshman at Washington State. Both transactions were allegedly made to a Venmo account for Richard Roaten, believed to be a teammate at Washington State at the time. 1 overall player in ESPN's portal rankings, transferred to Oklahoma from Washington State this offseason.