Lots of teams from the UK have participated in the Champions League, including Liverpool, Chelsea, Manchester United, Arsenal, Manchester City and others.
The team that was crowned the French football champions in 1936 is RCF Paris.
No team has been crowned the French football champions for 2015 until when the league shall be played in 2015.
No team has been crowned the French football champions for 2016 until when the league shall be played in 2016.
No team has been crowned the French football champions for 2018 until when the league shall be played in 2018.
No team has been crowned the French football champions for 2017 until when the league shall be played in 2017.
Bordeaux.
The team that won the UEFA Champions League title in 2012 was Chelsea FC.
The Dutch football league winners in 2013 were the reigning champions, Ajax.
Arsenal were the Premier League champions in 1997/8
Burnley were the Football League Champions in 1960.
What team was the runners up of the French football league in 1905 was Gallia Club Paris.
Ofcourse he can play in the Champions League with a team even if has previously played with another team. But if a player has represented a club in a particular season the CL he cannot then play for another club in the same year's CL.