Walcott will miss the World Cup due to the setback.
"I know this will make me into a better person, a stronger person," he told arsenal.com. "I don't want to look at [what happens in] six months time, I want to look at 10 to 15 years when I'm still playing.
"I don't want to push the injury [now] and not be 100 per cent and then cause other injuries. My main concern is to take things week by week and try not to put a timespan on it."
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