Alexis Sanchez took the Premier League by storm last season following his £35 million move from Barcelona in the summer.
The Chilean scored 25 goals in all competitions as he helped the Gunners win the FA Cup and finish third in the league.
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When questioned on comparisons between the Chilean playmaker and Chelsea's Eden Hazard, the French boss said: "I don't like all these comparisons.
"Everybody always thinks their player is the best, which I can understand, but what Sanchez did for the first year in the Premier League is absolutely exceptional and hopefully he will not only repeat it but grow again."
This will be music to the ears of Arsenal fans who are hoping their side can mount a serious title challenge in the coming campaign.
Sanchez continued his fantastic form from in the summer with some fantastic displays to help Chile lift the Copa America and if he can build on last season's tally of 16 goals and eight assists in 35 games then Arsenal should be there or there abouts come the end of the season.
There are no questions over whether Sanchez was value for money. He was the stand out man in Arsenal's squad over the previous campaign and won the PFA Fans' Player of the Year award.
The Chilean recently posted a couple of slow motion videos on his instagram, of him training on a beach and he looks ready and raring to go once he returns to London.
Arsenal's only addition this summer has been Petr Cech, but the form they showed at times last season, especially after the introduction of Francis Coquelin showed the North London club have a squad assembled to make a serious charge at Chelsea's crown.
The Community Shield on Sunday is a good opportunity for the Gunners to lay a marker down to not just Chelsea but all of their title rivals.
It is also a chance for Wenger to rekindle his rivalry with Jose Mourinho, a man he has failed to beat during his time as Arsenal manager and Wenger believes Sunday's showcase is a great opportunity to show how his side have improved from the last campaign.
"We have a good opportunity to show that we have improved. It's on neutral ground, where they've had success and we've had success, so it will be very interesting." he said.