Arsenal striker Theo Walcott has been ruled out of England's World Cup qualifiers against San Marino on Friday and Montenegro next week after picking up a groin and hip injury in training.
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"(Walcott) sustained the problem in training with the national team on Thursday and will fly back on Saturday to be assessed by the Club's medical staff," Arsenal's website said.
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Earlier media reports indicated the 24-year-old was likely to be out for seven to 10 days, making him doubtful for Arsenal's Premier League game against relegation-threatened Reading at the Emirates stadium on March 30.
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England are second in a tight Group H, two points behind leaders Montenegro and three ahead of Poland who have a game in hand.