Victor Wembanyama has another big man to help him out in San Antonio. The Houston Rockets continued their offseason overhaul. And Orlando and Atlanta made moves with eyes on contending this coming season as the NBA's free agency period got underway Monday.

OKLAHOMA CITY — Shai Gilgeous-Alexander and the Oklahoma City Thunder have agreed on a record-setting 4-year, $285 million extension that would give him the highest single-season average salary in NBA history, a person with knowledge of the agreement said Tuesday.

OKLAHOMA CITY — Jalen Williams is planning to have surgery on his right wrist after the Oklahoma City forward tore a ligament before the Thunder started their run to a championship, general manager Sam Presti said Monday.