The defender had been a bright spark for Aston Villa before picking up a season-ending injury.
The French defender was signed in the summer, but will now miss the rest of the current campaign after picking up a knee injury while playing for France's under-21s.
It was a disappointing end to his campaign, with Amavi having been one of the few bright spots for Villa in what has been a dismal season to date.
The type of injury he has suffered is one that can ruin a young players’ career, but Ayew has backed his teammate to bounce back in spite of it.
"I know he has a good mentality and I am sure he will come back stronger. I have no doubts about this,” he told avfc.co.uk.
"He is keeping positive. He has his spirits high. I knew him before he came to Villa. Where he comes from in France, they are strong people. He is too.
"He's a fine player. He has the potential to be one of the best left-backs in the world. He has the potential but, as always in life, he has to work very hard to get to that level.”
Whether Amavi goes on to become one of the best in the position is yet to be seen, but that will be down to his mentality as much as anything else.
When he does eventually return to full fitness, he will surely pick up a number of smaller injuries along the way, which is the usual routine for players who are absent for large periods.
If the Villa left-back can get over those and return to the kind of form he was showing before this setback, there is no denying he is set for a bright future as Ayew predicts.