The defending NBA Champions are adding to their roster.
McCain has experienced a sophomore slump in his second year in the NBA, after bursting onto the scene as a rookie in 2024-25.
The 21-year-old is averaging 6.6 points, two rebounds and 1.7 assists on 38.5 per cent shooting through 37 games this season.
Last campaign, he was a Rookie of the Year favourite before going down with a torn meniscus. McCain averaged 15.3 points, 2.4 rebounds and 2.6 assists on 46 per cent shooting in 23 games in 2024-25.
McCain became expendable in Philadelphia after the 76ers drafted VJ Edgecombe third overall in the 2025 NBA Draft.
The move also provides them with the flexibility to bring Quentin Grimes back in free agency and convert two-way guard Dominick Barlow, per Charania.
The Thunder sit first in the NBA at 40-11.
