Spanish league players will go on strike and boycott the start of the new season if a new collective bargaining agreement is not signed.

Spanish Football Players Association (AFE) head Luis Rubiales says ''the league will not start until there is a collective bargaining agreement signed'' between the AFE and the league (LFP). The decision would affect topflight and second division games.

Around 100 players representing all 40 clubs in the top two divisions have backed Rubiales' promise. Real Madrid players Iker Casillas and Xabi Alonso as well as Barcelona captain Carles Puyol attended Thursday's news conference.

League play is set to start Aug. 20.

Casillas says: ''It's a very difficult situation and at this point I don't think we'll play.''