The north London side are currently getting used to life under new manager Unai Emery as they look to try and climb the table following their sixth-placed finish last term.
Emery was brought in by the Gunners back in May after Arsene Wenger opted to step down at the end of last season after a trophyless campaign.
Aubameyang has also been settling into life at The Emirates after having signed for the Gunners from Borussia Dortmund back in the January transfer window.
The 29-year-old netted his first goal of the season on Sunday as he helped Arsenal to claim a 3-2 win over Cardiff City to make it back to back victories in the top flight.
And former Arsenal defender Campbell feels that Aubameyang will have to be at his best if the Gunners are to really challenge for a top-four place this season.
Speaking in an interview with the Daily Star, Campbell said: “Aubameyang, I know he’s from last season.
“But I think from the start of this season, I think it would be good for him to get off running and get on to his scoring abilities.
“I think his goals will be really vital for Arsenal nudging up and going beyond sixth and hopefully getting that fourth spot.
‘He has to keep on, and Lacazette as well, but I think that he needs to really have a good season.”
Arsenal will return to Premier League action after the international break when they travel to Newcastle United in the top flight.
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