Steven Naismith is surprised that more top clubs are not being linked with Rangers team-mate Allan McGregor after he was watched by Manchester United.
The Red Devils dispatched scout Martin Ferguson, brother of Sir Alex, to watch the Scotland international in action against World Cup winners Spain at Hampden Park.
The 28-year-old goalkeeper is at the top of his game, according to Naismith, who has seen up close the quality of saves he has made in recent months.
United are now being linked with a £5million bid with question marks over whether veteran shot-stopper Edwin van der Sar will continue playing next season.
McGregor has displaced Craig Gordon as Scotland's No.1 and Naismith is stunned more of the Premier League's big names have not been sniffing around his services.
"Allan is up there now with the best in the game," said Naismith. "I'm surprised no other club has come in to try and buy him from Rangers.
"He's been fantastic for us ever since I've been at the club. En route to the Uefa Cup Final a couple of years ago some of his saves were absolutely brilliant.
"Some of his saves in Prague were terrific and then against Spain he was really good.
"Allan's had his problems off the park, but he's learned from them. He's now Scotland No.1 and, while big Craig is also a top keeper, it's roles reversed for the two of them now.
"Craig knows he'll need to be at his best to get back in the team.
"When you look at the likes of Arsenal needing a keeper, it's really unbelievable that no-one has come in for Allan, but I'm not complaining. The longer he stays with Rangers the better it is for the rest of us at the club."