The ex-Chelsea defender, who only recently joined on a free transfer, limped off after only three minutes of his side's defeat at Tottenham after suffering a hamstring tear
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Bosingwa arrived at Loftus Road on a free transfer after being released by Chelsea at the end of last season and was only making his fifth appearance for the club on Sunday, but now looks set to have his momentum halted by injury.
Indeed, speaking after the loss, QPR manager Mark Hughes voiced his fears that the right-back could be out of action for a prolonged period.
"It is likely to be either a grade one or grade two tear and we will know after we get him scanned,” Hughes told reporters.
“He got the ball early, made a pass and immediately felt something and then had to make a run forward which didn’t help matters. We had no choice but to bring him off and we are hoping it is not as bad as we fear it is.”
Bosingwa was replaced by Kieron Dyer as QPR let a first-half lead slip at White Hart Lane.
Hughes' men have made a poor start to the season despite their extravagant summer spending and sit a lowly 19th in the Premier League standings having failed to register a victory in their opening five fixtures.