San Antonio Spurs superstar Victor Wembanyama remains in the NBA's concussion protocol. That has Wembanyama's listed as questionable for Game 4 of the Spurs first-round playoff series against the Portland Trail Blazers. The Spurs lead the series 2-1 heading into Game 4 in Portland on Sunday.

"We are still working through the process and continuing to work with the NBA," San Antonio coach Mitch Johnson said on Wembanyama's status for Game 4.

The Spurs star center went through most of his pregame workout before being ruled out for Game 3. Wembanyama must pass several benchmarks, including being symptom free before the league will clear him from the concussion protocol.