Group D
Xabi Alonso, Bayern Munich
This could be the Spaniard's last shot at joining Clarence Seedorf and becoming the second player in history to win the Champions League with three different clubs. Legendary at Liverpool and Real Madrid, he is still going strong at almost 35, but that is probably his last season at Allianz Arena. Can we expect a goal from the halfway line?
Nicolas Gaitan, Atletico Madrid
The Argentine midfielder spent six years at Benfica despite constant rumours every summer. Now that he has finally left for a bigger club, this is his chance to prove his worth. A true flair player and crowd pleaser, Gaitan, 28, is also a hard worker admired by Diego Simeone. He could be the game-changer.