The world will know before the evening is out whether the current Champions League title holders have been knocked out of the competition when Man United try to make good on their less than perfect chances away at Porto.

Sir Alex Ferguson’s men need either a win against the Portuguese or a draw with more than 3 goals: that’s why much will hinge on the performance of team leaders Wayne Rooney (pictured) and Cristiano Ronaldo.

Rooney, despite topping the list of best English forwards with 166.26 points, remains out of the league of best world football players. He will need to earn at least 3 rating points or better yet score if he wants to return into the world Top 23.

Ronaldo’s perspectives are brighter. A goal by the Portuguese international will bring him closer to the leaders in the world Top 23, while a double could take him right to the very top of the rating. In fact if Ronaldo happens to earn a bonus, it will add to the 4.50 rating points he lost in the Premier League game against Fulham. Ronaldo currently has a rating of 185.26 points.