Bryant and his daughter Gianna died along with seven others in a helicopter crash on Sunday. Bryant, who retired from the NBA in 2016, spent his entire 20-year career with the Los Angeles Lakers.
Ovechkin, who usually wears No. 8, was a longtime Bryant admirer.
"It was our idea because he was a legend," Ovechkin said of the gesture. "He was a great person, obviously one of the great athletes of all time. To do that kind of stuff, it's all about respect. It's all about remembering him and his daughter. It's tough, but it's hard to say something."