Here are the correct answers:

Which of these players did NOT come on as a substitute for Chelsea in the 2008 Champions League final?
John Obi Mikel

Which of these players scored with a penalty during the shoot-out at the end of that game?
Juliano Belletelli

Bayern Munich’s former Chelsea winger Arjen Robben joined the Blues from which Dutch club?
PSV

In which year did Robben move to Stamford Bridge?
2004

Chelsea last won a European trophy in 1998. How many players who featured for them in that game have since managed English clubs?
Five (Dennis Wise, Roberto Di Matteo, Gus Poyet, Gianluca Vialli and Gianfranco Zola)