Saka challenges aubameyang for arsenal player of the month award
I think there may be a slight issue here!
Saka is a talented young player for Arsenal, but I'm not aware of any instance where he has challenged Aubameyang for the Arsenal Player of the Month award. Aubameyang is a prolific goal-scorer and one of the top players in the Premier League, while Saka is a promising young winger who has been making a name for himself in the team.
In fact, Aubameyang has won the Arsenal Player of the Month award multiple times in the past, and it's unlikely that Saka would be challenging him for that award at this point in their careers.
If you have any more information or context about this "challenge", I'd be happy to help clarify things!