Top 10 Champions League/European Cup goals-per-game ratios revealed including Cristiano Ronaldo and Lionel Messi

Cristiano Ronaldo and Lionel Messi's fight for individual dominance is set to once again provide a highlight of the Champions League.

Ronaldo faces Shakhtar Donetsk at the Bernabeu, while Messi travels to Rome with Barcelona. Both are the European goal kings, but where do they rank among the competitions's greats?

Click the yellow arrow above, right, to see the 10 players with the best goals-per-game ratio in both the European Cup era (1955-1992) and in it's current Champions League format.