'I have faced Messi and Ronaldo, but PSG trio could be the best ever'

"I have faced Ronaldo and Messi," the Celtic goalkeeper recalled ahead of Wednesday's Champions League clash in Paris. Gordon will have to attempt to stop PSG's £400 million worth of firepower up front, Neymar, Cavani and Mbappe, whom he believes have the potential to become the best ever.

"I've been lucky enough to face most of the best strikers in the world and these three are definitely right up there and will only get better," added Gordon. "They are all fairly young to keep going for a while and the understanding between them is only going to get better."

"It's a big challenge, we know that. Can they surpass the Neymar, Messi, (Luis) Suarez trio? Who knows?," the keeper continued. "As long as they get on with each other for long enough..."

"Their talent is certainly capable of taking them that far and looking as good as those Barcelona three and possibly surpassing it. They are all great players but it's how they play together that makes the difference," said Gordon, who already suffered a harrowing 5-0 defeat at the hands of the French side in September.