Bayern Munich have reportedly joined Real Madrid and Barcelona in the hunt for Celtic forward Moussa Dembele.

Earlier this month, it was claimed that the Spanish pair had both scouted the 20-year-old in the early stages of the season, with the striker impressing at Camp Nou in the Champions League on September 13 despite his team's 7-0 defeat.

According to The Sun, Bayern sent scouts to watch Dembele against Manchester City in the Champions League on Wednesday, where the forward scored twice in a 3-3 draw to take his total to the season to 12 goals in 16 appearances.

Dembele, who joined Celtic on a free transfer in the summer after running down his contract at Fulham, was linked with both Arsenal and Tottenham Hotspur in the second half of last season.