Not in the same season. The player can't be registered for the competition with the second and will be 'cup-tied'.
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.
The Champions League, the club competition for soccer clubs in Europe, is international. Clubs from many different countries in Europe participate in it.
Borussia Dortmund, the german club, won the Champions League in 1997. It was their very first Champions League triumph.
No club from Macedonia has won the Champions League.
Owen Hargreaves, for Bayern Munich in 2001.
Daniel Amokachi for Club Brugge in 1993, the first season of the Champions League.
The runners up in the 1978 UEFA Champions League were the Club Brugge.
Cristiano Ronaldo currently plays his club football for Manchester United FC. They are the 2007/2008 Premier League Champions, UEFA Champions League winners, and FIFA World Club Champions.
Yes, Champions of England (Premier League), Champions of Europe (Champions League), Champions of the World (FIFA World Club Cup)
Liverpool have won the Champions League once, and the European Champions Club Cup 4 times.