Stanford Cardinal forward Cameron Brink (22) celebrates with Cardinal guard Kiana Williams (23) as Cardinal guard Anna Wilson looks on after defeating the Arizona Wildcats to win the national championship game of the women's Final Four of the 2021 NCAA Tournament at Alamodome. Troy Taormina-USA TODAY Sports

Russell Wilson was having a blast watching sister Anna win the national championship on Sunday.

Wilson’s sister is a guard on the Stanford Cardinal. She went 2-for-3 and scored five points in her Cardinal’s 54-53 win over Arizona.

After she made a 3-pointer in the championship game, Wilson, who was in attendance, went nuts.

The Seattle Seahawks quarterback was supportive of his sister all tournament long.

Anna is a fifth-year guard from Seattle. She made the Pac-12 All-Defensive Team this season.

More must-reads:

TODAY'S BEST
Pacers collapse down the stretch as Celtics sweep ECF
Hall of Famer, beloved broadcaster Bill Walton dead at 71
Jason Robertson leads Stars to comeback win over Oilers in Game 3
Despite recent form, Rafael Nadal's legacy is still gold standard for tennis
Bengals coach offers significant injury update on QB Joe Burrow
MLB officials expect automated ball-strike system to be implemented in 2026
Vikings reportedly considered Justin Jefferson trade during NFL Draft
A matured Kyrie Irving is finally proving to be the star we all knew he could be
Insider: Sixers 'a threat' to sign LeBron James in free agency
Week 14 NASCAR rankings: Larson's no-show shakes up the running order
Three hitters Braves should target after losing Ronald Acuna Jr.
Shohei Ohtani shares major update on his pitching rehab
Status of Pacers' Tyrese Haliburton revealed for Game 4 of ECF
Martins designate right-hander for assignment
Dave Pasch pays heartfelt homage to longtime broadcast partner Bill Walton
Rangers' Jacob Trouba fined $5K for elbowing Evan Rodrigues
Eagles players gush over leadership qualities of Saquon Barkley
NFL considering regular-season games in Dublin, Paris
Nationals designate former top prospect for assignment
Browns running back shares when he expects to return from torn ACL