The Chile international was a revelation in his first campaign in English football, firing the North London outfit to the top four with his superb skill, lightning pace and goals.
The former Barcelona man tasted success on home soil over the summer as Chile won the Copa America against Argentina in the final - but this has blighted the attacker’s club pre-season.
With Sanchez was only fit enough for the bench in Arsenal’s shock 2-0 defeat by West Ham on the first day of the season but is not far away from featuring again from the start for the Londoners - Wenger has sung the star man’s praises.
“He came back reasonably fit,” Wenger is quoted as saying by The Express.
“He practised for two weeks before he came back. He did not start from zero. In training now, he looks alright.
“I knew before the start that, once he was here, he would be difficult to stop. So I gave him a long enough break. He had four weeks off, which is quite reasonable. He finished on July 3 and he came back on August 3.
“He works extremely hard in every single training session to show that he is ready. I think what he does is, for me, normal. It is what everybody should do.
“You wonder if he has created a beach at home, and runs along the living room! He is a hyperactive guy. He needs that to be happy.
“He played 52 or 53 games last season, plus the Copa America. That means somewhere he has an instinct that shows how far he can go.
“It is difficult. In March, April, May, you could see he was a bit jaded.
“But he is still a guy who can make a decision in a game. And once he is out there he gives 100 per cent.
“This season, he knows what is expected from him, and he will do better than last year.”
Arsenal take on Crystal Palace this weekend, with the title-aspiring outfit keen to avoid a repeat of last season - a slow start to the campaign.
This inconsistency robbed the Gunners of a title challenge and with the North Londoners keen to be England’s best team again, Sanchez’s return to form cannot come soon enough.