MOTOR SPORT:  Teams threatening to break away from Formula One risk losing their place on the grid if they do not take advantage of a 10-day window of opportunity next month to commit to the sport.

Max Mosley, president of the sport's world governing body (FIA), said he hoped the five "rebel" manufacturers would announce they will stay with Formula One after the sport's Concorde Agreement runs out at the end of 2007.

However, he warned Renault, Honda, Toyota, McLaren-Mercedes and BMW-Sauber they would not be guaranteed one of the 12 team slots if they failed to sign up in time.

"From 2008, no one has either a right or an obligation to enter the championship," Mosley said.