Celtic fans could be banned from attending their blockbuster Champions League tie against European giants Real Madrid or Bayern Munich after letting off fireworks during the defeat at Aston Villa on Wednesday.

The UEFA Champions League's first-ever league phase came to a dramatic close on Wednesday, setting up for an equally entertaining knockout stage that begins in two weeks' time. The introduction of the new format means the Champions League will introduce a new phase of competition in February when 16 teams will take part in the knockout round playoffs.

Manchester City face an intriguing Champions League last 16 play-off tie against either title holders Real Madrid or five-time winners Bayern Munich. That is already known because all 24 teams that have advanced from the league phase are placed in a tennis-like bracket for the first time - showing a team's potential path towards the May 31 final in Munich.

Bayern Munich has received huge interest in Mathys Tel with the forward tipped to move on in the transfer window after he was seen bidding farewell to the club's fanbase

United are gearing up for a busy end to the January transfer window, with Bayern Munich starlet Mathys Tel now among their forward targets. The 19-year-old is reportedly being eyed by a number of Premier League clubs, including Chelsea and Tottenham, and has yet to make a decision on his future away from Bayern.

The French youngster is attracting major Premier League interest from Tottenham, Chelsea, Manchester United and Aston Villa. Eberl, quoted by the London Evening Standard, said: "We spoke in December and Mathys said he wanted to assert himself. "Now he has said he would like to leave.