Comcast Corp.’s NBC and Versus networks said they had retained US broadcast rights for National Hockey League games in a 10-year contract that people familiar with the agreement said was worth $2 billion.

NHL Commissioner Gary Bettman, joined by NBC Sports Group Chairman Dick Ebersol on a conference call with reporters, said the accord will expire after the 2020-21.

Bettman and Ebersol declined to disclose specifics of the rights fee. The $2 billion price tag was confirmed earlier yesterday by two people who were granted anonymity because the deal hadn’t been officially announced.