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Unlucky O'Brien suffers setback

AFC Ajax's American defender John O'Brien faces between four and six weeks out after hurting his hamstring.

Stretched hamstring
O'Brien, who was making his first start since February, stretched his hamstring during Ajax's 3-1 win at Willem II and faces between four and six weeks out. Having not played in the UEFA Champions League this term, it seems certain he will miss the rest of the tournament's group stage which concludes in early December.

Little football
The 27-year-old has played little football in the past two seasons, during which time he sustained a nasty achilles injury. Indeed, since arriving in Amsterdam from FC Utrecht in the summer of 1999, O'Brien has made just 65 league appearances.