Oldham manager John Sheridan has admitted midfielder Jason Jarrett is almost certain to miss Saturday's home clash against Leyton Orient.The on-loan Preston man sustained a groin injury during Saturday's miserable 3-0 defeat at Swindon.
And Sheridan said: "Jason has a groin injury and they usually take more than a few days to heal."
Meanwhile, Leeds striker Leon Constantine has returned to Elland Road after Sheridan decided against extending his loan for a second month.
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