Mesut Ozil was the star of the show scoring the equaliser, playing a key role in the second goal and providing Pierre-Emerick Aubameyang with the assist for the third.
The Nigerian global said that Ozil has been advising him since he was aged 17.
Arsenal continued their excellent run of form on Monday night when they put Leicester City to the sword at the Emirates with a 3-1 win over the Foxes.
"The quality he has is not just in training".
In fact, Sanchez only has three goals in the league since arriving at United, while Aubameyang has managed four in the last 35 minutes of league football he's played!
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"But he is always happy, always telling me and giving me the confidence to express myself, so it helps me".
While Iwobi has benefited from working with Ozil on a daily basis, he has also seen the arrival of Emery as successor to Arsene Wenger unlock greater consistency in his game.
The Gunners have quietly gone about their business this season and are just two points off the Premier League summit after nine league games when many didn't give them a chance to challenge for the title.
He believes it is a testament of the Spaniard's work on the training pitch that Arsenal look such a well-drilled side with clear instructions on how to go about their business.
Emery said: "I think we need to continue with the calm, with thinking each match like a big possibility to continue in our way".