When Alexis Sanchez left for international duty following his brace against Manchester United, Arsenal manager Arsene Wenger revealed he was worried about an ongoing groin problem his in-form forward was suffering.
But despite experiencing pain in his adductor, Sanchez played 90 minutes against Brazil and followed it up with another intense 90 minutes against Peru on Tuesday night.
He scored three goals in those two matches, inspiring Chile to a perfect start to their World Cup 2018 qualifying campaign. But did his efforts on the international stage aggravate that groin injury? It seems the answer is no.
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Wenger, speaking ahead of Arsenal's trip to Watford this weekend, says he has spoken to the 26-year-old, who confirmed he would be fit to play for the Gunners.
In fact, in what will come as unusual news to Arsenal fans well versed in injury crises, the Frenchman confirmed he has no new fitness concerns ahead of the short trip to Vicarage Road.
"From the internationals we only have positive news," the Frenchman told Arsenal's official website.
"We are still waiting for [Joel] Campbell, Alexis and [David] Ospina to return, but they all texted back to say they are OK, so we just have to see if they were objective in their assessment."
Sanchez hit the headlines across South America this morning after scoring two and setting up another in Chile's 4-3 win over neighboring Peru.
That was despite the fact that a few Peruvian locals had used a tortoise and a replica Sanchez shirt to try and slow him down ahead of the qualifier.
It seemed like a fool-proof plan at the time, but the only magic on show at the National Stadium in Lima was emitting from Sanchez's football boots.
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