Rangers striker Martyn Waghorn has told the Daily Mail that he thought Craig Gordon was the best goalkeeper in the world when he signed for Sunderland.
Waghorn, 25, came up through the ranks at Sunderland having joined at the age of eight, but made only eight appearances for the Black Cats first team, scoring no goals.
Since then, Waghorn has had spells with Charlton Athletic, Leicester City, Hull City, Millwall and Wigan Athletic, before signing for Rangers over the summer.
With 15 goals in 18 games, Waghorn has made a superb start to life at Ibrox, but has now looked back on his time at Sunderland alongside one of Celtic's key players.
Goalkeeper Craig Gordon joined Sunderland from Hearts back in 2007, but managed only 95 appearances having been plagued by injuries, and he even took two years out of football before signing for Celtic back in 2014, where he has become a real Bhoys hero.
Waghorn trained alongside Gordon during his time at Sunderland, and has now told the Daily Mail what he thought when he first got the chance to work with the Scottish shot stopper - claiming that he and his Sunderland team-mates were in awe at how impressive Gordon was.
"I always remember the first session Craig had and the boys looking at each other thinking we had signed the best keeper ever," said Waghorn. "He was pulling off all kinds of saves. Top corner, bottom, you name it."
"He was so unfortunate with injuries. Little niggles and the knee problem. I didn't get many past him in training. No one did, to be fair, he was something else. I haven't seen him since I came up to Scotland but I will and I'm pleased he's back so strong," he added.
If Rangers win promotion to the top flight this season, Waghorn and Gordon could go head to head in an Old Firm derby - and maybe the Gers star will finally get one past Gordon having struggled to do so in training for Sunderland.