NBA legend Kobe Bryant died in a helicopter crash on Sunday, according to multiple reports. He was 41. Bryant’s 13-year-old daughter Gianna was also among those killed, according to multiple reports.

The news rocked the sports world, with many athletes sharing their disbelief and tributes on social media.

“There’s no words to express the pain Im going through with this tragedy of loosing my neice Gigi & my brother @kobebryant,” Shaquille O’Neal, who won three NBA titles with Bryant on the Lakers, wrote on Twitter. “I love u and u will be missed. My condolences goes out to the Bryant family and the families of the other passengers on board. IM SICK RIGHT NOW.”

Stars from other sports reacted to the news as well, including Patriots quarterback Tom Brady.

“We miss you already Kobe ❤️❤️🙏🏼🙏🏼,” Brady wrote.

NBA legends were among those also reacting on Twitter.

“Most people will remember Kobe as the magnificent athlete who inspired a whole generation of basketball players. But I will always remember him as a man who was much more than an athlete,” Kareem Abdul-Jabbar wrote.

“I’m stunned,” Scottie Pippen wrote. “Words can’t even come close to describing it. Just an incredibly sad and tragic day.”

“Nooooooooooo God please No!” Dwyane Wade wrote.

Bill Russell also paid tribute to Bryant.

“Jeannine & I are absolutely shocked to hear of the loss of one of my favorite people & one of the best basketball minds in the history of the game!” Russell wrote. “Our hearts & prayers to Vanessa & his girls. @kobebryant you were my biggest fan, but I was yours.”