Sanchez missed his side's opening two games of the season with an abdominal strain and has not taken to the pitch since his exploits with Chile at this summer’s Confederations Cup in Russia.
“We'll see how he goes through the week. He has not played for a long time,” Wenger said.
“We prepared well, yes he was out, he had a muscular strain and hopefully he'll survive the tests first before he comes back.
“He has not played now for six weeks, it's difficult in the first game to be at your best.”
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