Trevor Sinclair fears former team-mate Aaron Ramsey could spark a Rangers title revival.
Fitness and injury issues have prevented Ramsey from making an impact at Ibrox since his sensational loan switch.
But he impressed at Dens Park on Sunday for 79 minutes as Giovanni Van Bronckhorst ’s men eased through to the Scottish Cup last four.
That quality is no surprise to Celtic supporter Sinclair who was convinced the Juventus man’s class would tell in Scotland once fully fit.
The ex-West Ham and Manchester City winger spent the final season of his playing career at Cardiff as teen sensation Ramsey broke through.
They reached the 2008 FA Cup Final with Dave Jones’ squad, losing to Portsmouth.
Now Ramsey has announced he’s got sights set on winning silverware with Rangers.
Sinclair said: “Aaron hasn’t played much for Rangers yet but, then, he’s not played much football before signing.
“The medical staff and fitness people will have wanted to get him to a certain level.
“Once he’s up and running, I’ve no doubt he’ll affect the team - and the league.
“He’ll do that with goals, assists, energy and quality which we’ve seen over the last 15 years and that’s not going to change.
“He can play different positions and isn’t a bad finisher either. He’ll have a lot to offer. Hopefully not enough! But I think he could be very influential.
“You see the performances he puts on for Wales, what he did for Arsenal, how he played for Juve when allowed to.
“He’s a top-class performer and he’s going to be a threat to Celtic, for sure.”
Rangers are three points behind Ange Postecoglou’s squad with eight games to play.
That could be six by Saturday evening as Celts host Ross County the day before semi-finalists Rangers return to Dundee on league business.
Sinclair was delighted pal Joe Hart signed for Celtic summer but wasn’t chuffed with Ramsey’s decision to join his enemy camp.
Sinclair joked: “Aaron’s disowned! I got hold of Joe Ledley and said: What’s going on with your mate, signing for Rangers?
“Aaron and Joe were really good friends as young players, you could tell they’d both go on and do better.”
