Having played in the Confederations Cup up until the final on July 2, Sanchez was given an extended summer break which included missing Sunday's Community Shield penalty win over Chelsea. "He had a little abdominal strain that he caught in training on Sunday morning before he came to Wembley".
Although Wenger admitted that entering the new campaign without Sanchez is a big blow for Arsenal, he pointed out that the striker would not have featured against Leicester even if he had not sustained the injury.
Speaking about the process on Sky Sports, Gazidis said: "We're in a society now where we are encouraged to throw away the old and buy the new thing which will make you happy and solve your issues. He had a scan two days ago and he's out for a while", The Guardian quoted Wenger as saying. Personally I think he is a hugely talented player, he's on the way up and he will continue to move up because the potential is there.
"Then we need to transform the quality of the preparation into points and that is, of course, a pragmatic view, but what matters is we win the next game and start in a strong way, which we didn't do previous year".
Premier League 2017/2018 begins: Top 5 things to look out for
The Gunners got the 2017-18 season underway with a thrilling encounter with Leicester City at the Emirates Stadium on Friday. The Gunners have been linked with a move to sign the France worldwide regularly over the past two or three seasons.
The north Korean crisis comes to Wall Street
The one-upmanship in the "war of words" between Donald Trump and Kim Jong-un came to accelerate the fall of the stock market. Hong Kong's Hang Seng Index plunged by 2 percent, while South Korea's Kospi Index slumped by 1.7 percent.
Gary Neville: 'Chelsea boss Antonio Conte not happy with Nemanja Matic sale'
Chelsea have signed Tiemoue Bakayoko as a replacement, although the France worldwide will miss the start of the season through injury.
"We haven't been able to beat them yet but there's always a first time and it would be nice to think it would be Friday night. He is focused. Of course when you have treatment on a medical bench, it's not easy".
The French tactician also admitted Aaron Ramsey, Mesut Ozil and Per Mertesacker could all miss out. "I just think we are not open - what I said to you many times - to any offers, anyway".
The Gunners were without a host of players including Ozil, Sanchez and Ramsey - all of whom have niggles ahead of their season opener against Leicester City on Friday.
After nearly 12 months of speculation surrounding Sanchez's future the end-game doesn't appear to be in sight.