Kevin Pietersen has hinted England's final test match of the summer against South Africa at Lord's could be his last.
The batsman, who has already quit playing limited overs internationals, is to hold talks with the ECB after the current series regarding a new central contract.
Pietersen said: "There are obstacles and I'll decide what happens at the end of the next Test. It's absolutely 100 per cent not about money. There are clear things that I'm discussing.
"But there are other issues that need to be sorted. The saddest part about all this is that the spectators just love watching me play - and I love playing for England.
"The politics is what I have to deal with personally. It's tough being me playing for England."
Pietersen's words come at a crucial time for the team who have to beat South Africa at Lord's to draw the series if they are to stay top of the world test rankings.