The Oklahoma City Thunder keep paying their future before it gets expensive. Guard Cason Wallace has agreed to a five-year, $139 million contract extension with the franchise, securing one of the league's best young perimeter defenders as part of the Thunder's long-term core.

Wallace has built his value the Oklahoma City way: defence first, versatility always. A guard who can pressure the ball, switch across positions and hold his own in a playoff rotation is exactly the profile the Thunder have collected and developed through their rebuild.

The extension is also a statement about timing. Oklahoma City's front office has made a habit of signing its core pieces early rather than letting them reach restricted free agency, where offer sheets and market pressure can distort a carefully built payroll.

At roughly $27.8 million per season, the deal prices Wallace as a high-end starter on a contender — a bet that his offensive game continues growing into his defensive reputation.

For the rest of the league, the message is familiar: the Thunder's window is not coming, it is here, and Oklahoma City intends to keep it open by keeping its own players.