Former San Francisco Giants reliever Randy Moffitt, the younger brother of Billie Jean King, has died after a long illness. He was 76 years old.

Moffitt reportedly died in his hometown of Long Beach, Calif., on Thursday.

Moffitt spent 10 of his 12 big-league seasons (1972-81) with the Giants. He was inducted into the team’s Wall of Fame in 2008.

The #SFGiants are deeply saddened to learn of the passing of former San Francisco Giants pitcher Randy Moffitt.

We extend our deepest condolences to the Moffitt family ?? pic.twitter.com/jmaXfnQM81

— SFGiants (@SFGiants) August 29, 2025

Moffit also pitched for the Houston Astros (1982) and Toronto Blue Jays (1983) and went 43-52 with a 3.65 ERA and 96 saves in 533 relief appearances and one start.

Moffitt was first-round draft pick (18th overall) by the Giants in 1970. He ranks ninth in franchise history with 83 saves.

He also excelled for Long Beach State for three seasons and was inducted into the Long Beach State Athletics Hall of Fame in 1986.

Moffitt and his famous sister always enjoyed a close relationship, and the 81-year-old tennis icon and humanitarian talked about Moffitt in April on National Siblings Day.

“My brother Randy Moffitt and I are alike in so many ways,” King wrote on social media. “We were both competitive kids, right from the start.

“He enjoyed a great career as an MLB pitcher, and spent most of his time with the San Francisco Giants.

“We were so fortunate to grow up in a loving home, and are very close today.

“Love you, baby brother.”

–Field Level Media