Neil Lennon's agent has warned Craig Burley that he should get his facts right before criticising Celtic in his role as a television pundit.

Burley's comments, while operating as a summariser for ITV during the Euro 2012 match between Ukraine and France on Friday, brought an angry response from the manager of the club where he previously played.

Through his newspaper column and on ITV, the former midfielder has been repeatedly critical of manager Lennon, chief executive Peter Lawwell and the Parkhead club.

He used the platform of his role on nationwide television to deliver what the Celtic hierarchy consider to be yet another unwarranted attack on the club.

Burley said of French substitute Yann M'Vila, who plays for Rennes, one of Celtic's Europa Cup opponents last season: "I watched that player boss the game against Celtic, even though that wouldn't be hard."

This brought an angry response from Lennon, currently holidaying in Portugal, via his Twitter account, on which he remarked: "A certain ex-player is belittling the club and undermining our achievements."

Lennon's agent, Martin Reilly, explained what had so upset the Celtic manager.

Reilly said: "If you are going to have a pop at the club, Neil Lennon or Scottish football, you should a least make sure you get your facts right.

"M'Vila did not even play in the tie in Rennes when Celtic drew 1-1. And, in the return game at Parkhead, he was sent off as Celtic won 3-1.

"So, to bring Celtic into his comments during this Euro 2012 game told its own story, and it's becoming quite tiresome.

"Craig Burley previously claimed that the championship Celtic have just won was devalued because of Rangers' situation.

"Yet, he was calling for Neil Lennon to be sacked when he was 15 points behind in the same season.

"I believe this latest comment is just further proof that Craig Burley has a personal grievance against Scottish football, Neil Lennon and Celtic. For what reason, no-one can understand."

Burley's departure from Celtic in 2000, after two-and-a- half years as a player, was acrimonious but neither Lennon nor Lawwell was at the club at that time.

This adds to the difficulty the manager and chief executive have understanding why they believe they are the subject of so much vitriol from the former midfielder.

Last weekend, he used his Sunday newspaper column to opine that Lennon was struggling to cope and needed previous Parkhead manager Gordon Strachan to join him as part of his backroom team.

That irked Lennon, who took over from Tony Mowbray as manager two years ago and last month brought the SPL title back to the club for the first time in four seasons.

Celtic have elected to remain silent, in public at least, until this point, but the latest comments from Burley could now lead to the club taking action.