Oklahoma State made the signing of former Georgetown center Julius Halaifonua official on Monday via release . The seven-foot center committed last month, but the signing puts him official on the men’s basketball roster for the 2026-27 season. Last season with the Hoyas the New Zealand native averaged 9.5 points, 4.4 rebounds and nearly 20 minutes per game. It’s the latest piece of the puzzle for OSU coach Steve Lutz , who is entering his third season and a critical moment in his time with the Cowboys. They’ve made two straight NIT appearances under Lutz, but they’re seeking their first NCAA Tournament appearance since 2021 under Mike Boynton Jr. So how much does Lutz and his staff have left to do? Assembling 2026-27 OSU Men's Basketball Roster Tall Ball 🪜 @HalaifonuaJ | #GoPokes pic.twitter.com/egs2Dt1eBY — OSU Cowboy Basketball (@OSUMBB) May 5, 2026 With Halaifonua’s signing, the Cowboys have officially announced five transfers.…