Amavi recently joined the Villans from Nice, while Senegalese midfielder Gueye made the switch from Lille.
Having both featured in Ligue 1, Amavi is confident that his new teammate will go on to have a positive effect on Villa.
“He trains hard. He plays hard. He always keeps going. He will bring a driving energy to the team. I believe he will be a big, big player for us.”
Aston continue their pre-season campaign on Saturday when they make the short trip to local rivals Walsall.
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