Skipper Chris Harris may step back from Team GB for a year if he fails to make next year's Grand Prix series.
The 'Bomber' has endured a GP season largely to forget so far, making one final in the Danish GP, and sitting just 11th in the standings on 59 points ahead of the last round in Torun on 6th October.
He has no chance of gaining automatic qualification in ninth for next year's series and so must receive a fifth wild card in six years if he is to make the line-up.
But with compatriot Tai Woffinden firmly in contention if organisers opt to select a Brit for the line-up, it is thought Harris could miss out.
And if this is the case, the Team GB skipper has revealed he may step away from the national side for a year, despite being a solid performer and an automatic pick for team boss Neil Middleditch.
Harris told the Speedway Star: "I still want to be in the Grand Prix, but I know it's going to be tough to get a wild card for next year. If I don't get one, I'll just have to look at my options and see what I can do.
"If I'm not in them, I might have a year doing just my league racing, the qualifiers and that's it really. I'd just sit out everything else.
"People say I'm not good enough to be in the Grand Prix and the World Cup is just as hard. I seem to do okay in that and I can do a job at that level.
"If people say I can't do a job in the Grand Prix, then I can't do it in the World Cup either. So what's the point doing it?
"Once I know what's happening, I'll sit down and have a good think about what I'm going to do. Nothing is definite yet."