Lionel Messi is the reason behind Argentina's glory in the World Cup final against France, Alexis Mac Allister believes, as he expressed his view that the forward is the greatest player of all-time.

Messi struck twice in a six-goal thriller to become the first player to score in every round of a World Cup tournament, with Argentina emerging as victors following a penalty shoot-out.

The Paris Saint-Germain forward was announced as the Golden Ball winner after the final whistle, while his appearance gave him the honour of featuring in the most World Cup matches in history (26).

Having added a World Cup to his trophy haul, Mac Allister believes the debate around who the greatest of all time is has ended.

"It's always Messi," he replied when asked by ITV what gave Argentina their victory.

"I think he's the best player in the world, the best player of all-time. He is amazing, he is a really nice guy, he is humble.

"He has everything to be the best player in history. It's amazing to share a dressing room with him and I'm very grateful."

Mac Allister also saved praise for goalkeeper Emiliano Martinez, who made a decisive save in extra time to deny Randal Kolo Muani before keeping Kingsley Coman at bay in the penalty shoot-out.

It was not the first time the Aston Villa stopper has provided heroics, with two saves in the quarter-final shoot-out against the Netherlands, and Mac Allister dubbed his compatriot as "amazing".

"Emi did really well, he is an amazing keeper, he helped us a lot during this tournament. I'm really pleased for him and really pleased for this country and for this team."