SCOTT Brown has warned that Brendan Rodgers could be lured away from Celtic despite signing a contract until 2021 as a result of his success in his debut season in Scotland.

The Northern Irishman led the Parkhead club into the Champions League group stages – an achievement estimated to be worth over £30 million - for the first time in three years after taking over from Ronny Deila.

The Glasgow club went on to complete the domestic campaign undefeated and record only the fourth treble – they won the Betfred Cup, Ladbrokes Premiership and William Hill Scottish Cup - in their 129 year history.

Read more: Celtic captain Scott Brown: No-one likes me but I don't care

Celtic were so impressed with how the team had performed under Rodgers they handed former Swansea City and Liverpool manager a lucrative new four year contract back in April.

Brown, who has formed a strong relationship with the 44-year-old since he arrived, is set to agree an extension himself imminently and is hoping he will be working under the same manager for the duration of it.

But the 32-year-old knows that clubs in England and further afield in Europe are bound to be eyeing his manager covetously given what he has achieved at Parkhead and may try to tempt him to join them.

“You never know as a player or a manager what is going to happen down the line,” the midfielder said. “Real Madrid could come in for the gaffer over the next six months, you never know.

“You could probably understand teams would want him, the way we’ve been playing. Especially with what we did last year in winning the treble. You’d expect that, but for now he is signed up, and lucky enough for us we’re going to get four more years with him, hopefully.”

Read more: Celtic captain Scott Brown: No-one likes me but I don't care

“But he has signed up, he’s happy here and he’s enjoying it. He’s enjoying living in Bearsden and he’s enjoying his life. He’s the manager at a top-quality club.”

Celtic have been linked with a move for Chelsea playmaker Charly Musonda and Brown believes that having Rodgers will help the Parkhead club to attract a better quality of player than they have in the past.

“As soon as people start talking about people leaving clubs in the [English] Premier League his name (Rodgers) gets mentioned,” he said. “I don’t think two or three years ago we’d have been able to touch anybody like that.

“But due to his name, and what he’s done in the game, he’s got a chance of bringing top quality players to the club and that’s what he wants to do. He wants to maintain the level that we set last year but also push us on.”

Brown added: “It’s been a good year last season. We have an early start with the Champions League. It is always going to be hard going back in as you saw in the game the other day. But hopefully this season is going to be just as good.

“I just keep working hard and doing what I need to do because I know the competition we have in our squad. If you have five, six, seven off games you will be right out of there. Somebody is always desperate to take your position. The lads are all in great nick and they can jump in at any time.”