But Mikel Arteta has used Elneny in eight games this season, and his captain has been left impressed.
Asked about Elneny's performance in in the win over Manchester United, Aubameyang replied: "It was also a fantastic performance in midfield from Mo [against United].
"I think his loan spell was good for him - to go out and get some more experience. He came back with that experience and that's really important too. How he's been playing since he came back is just unbelievable.
"His sprint at the end of the game… I don't know how he did that! That is the energy he has, that's what we want as a team and everyone here really wants to play that way.
"We want to give everything, in every minute and that's exactly what Mo is doing.
"He's a funny guy Mo, and I think we are similar people. We are both always smiling and being positive, so when we get together it's always funny - we laugh a lot. It's really, really nice to be around him."
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