Manchester United striker Robin van Persie believes any one of 10 teams can win the Champions League this season.
The knockout stages of European football's elite competition got underway last week, with Bayern Munich, Barcelona and Paris Saint-Germain all laying down markers in their first leg ties.
Manchester United re-start their campaign in the last 16 against Olympiakos tomorrow, and are favourites to make it to the quarter-finals stage.
With their Premier League campaign not going to plan, Red Devils boss David Moyes will be targeting a run in the Champions League to boost morale.
And Van Persie believes that is more than possible, insisting that the competition wide open this season.
"If you play well and are lucky you have a good chance of going far," he told reporters. "Even then I think there are eight to 10 teams who could win it this year."
Manchester United moved up to 6th with their 2-0 win over Crystal Palace on Saturday, however they are running out of time to close the gap to rivals Liverpool who currently occupy the fourth and final Champions League qualification spot.
However Ryan Giggs has warned his Manchester United team-mates to keep their eye on the ball against Olympiakos, who he believes will pose a considerable threat.
"The atmosphere in the stadium is going to be electric," he said.
"It's always great to play in a stadium with a good atmosphere, we know the Olympiakos fans are going to be cheering their team on, we also have a good set of travelling fans which will make for a great atmosphere.
"Once you get to this stage of the competition you know that there are not going to be any easy matches."
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