Stuart Armstrong says he knew he was staying at Celtic

Stuart Armstrong (L2), of Celtic celebrates scoring a goal early in the first half during the William Hill Scottish Cup Final between Aberdeen and Celtic at Hampden Park on May 27, 2017 in...

Stuart Armstrong was linked with moves away from Celtic before he signed a new contract with the Celtic Park outfit.

Stuart Armstrong (L2), of Celtic celebrates scoring a goal early in the first half during the William Hill Scottish Cup Final between Aberdeen and Celtic at Hampden Park on May 27, 2017 in...

Celtic midfielder Stuart Armstrong has told The Telegraph that speculation over his future did not affect his performances on the pitch.

Armstrong signed a new two-year contract with Celtic earlier this month which will see him remain at the Glasgow giants until the summer of 2019.

The 25-year-old midfielder has been on the books of the Celtic Park outfit since February 2015 when he joined from Scottish Premiership rivals Dundee United.

Stuart Armstrong of Celtic celebrates scoring his sides first goal with his Celtic team mates during the Ladbrokes Scottish Premiership match between Celtic and Rangers at Celtic Park on...

The Scotland international played well last season, and helped Brendan Rodgers’s side win the Scottish Premiership, the Scottish League Cup and the Scottish Cup.

Before he signed the new contract, Armstrong was linked with moves away from the Glasgow giants in the summer transfer window, with West Bromwich Albion, Swansea City and Southampton reported to be interested in him by The Daily Mail.

The 25-year-old Scotsman has revealed that negotiations over a new deal did not affect his game, and has also claimed that he always knew that he was going to remain at Celtic Park.

Kieran Tierney of Celtic controls the ball during the UEFA Champions League Qualifying Play-Offs Round First Leg match between Celtic FC and FK Astana at Celtic Park on August 16, 2017 in...

Meanwhile, former Celtic centre-back Alan Stubbs has said that 20-year-old Scotland international left-back Kieran Tierney is the only top-class defender in the current Bhoys' squad.

“In my head it was clear that I was staying so there was no issue with being unsettled,” Armstrong told The Telegraph. “It was obviously just everything surrounding it – I just wanted to focus on playing football.

“It was always my decision to get that contract signed. It just took a bit of time but now that is all sorted and everything has settled down.

“Everyone is fighting for a spot to play for Celtic and that’s the way it should be. It has been that way since the day I joined the club and it is no different now.”

"The only top-class defender they've got is Tierney,” Stubbs told BBC Sport. "Domestically, Sviatchenko, Boyata, [Jozo] Simunovic are competent, but the Champions League is a whole new ball game.”

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