Rooney: Anything can happen
Wayne Rooney is adamant "anything can happen" as Manchester United wait for Friday's Champions League quarter-final draw.
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United joined Premier League rivals Chelsea in the last eight after they overturned a two-goal deficit against Olympiacos thanks to Robin van Persie's hat-trick on Wednesday.
Three-time winners United are 18-1 shots to lift the trophy but are more than capable of upsetting the odds against a strong field.
As well as the Blues, the quarter-final draw contains reigning champions Bayern Munich and their Bundesliga rivals Borussia Dortmund, Spain's title-chasing trio Barcelona, Real Madrid and Atletico Madrid and big-spending French champions Paris St Germain.
England striker Rooney said: "I think in cup football anything can happen. We're in the quarter-final so you never know what can happen from there.
"You look at the three Spanish teams left in the competition, they're all good teams. Chelsea are probably playing the best football this season and obviously you've got Bayern Munich.
"PSG are playing well. It's a talented group of teams so whoever we get I'm sure it will be tough."
Chelsea's Premier League campaign faltered at the weekend when they lost to Aston Villa, but they bounced back with a 2-0 win over Galatasaray on Tuesday.
Manager Jose Mourinho's hunger for success in the competition cannot be doubted either. If Chelsea win the Champions League, he will be the only manager other than Bob Paisley to lift the trophy three times.
Despite all the bravado from both camps, perhaps the best way for England to have a team in the last four is if United and Chelsea draw each other in the quarter-finals.
The other six teams left in the hat have won 19 European Cups between them and those that have not won the competition are certainly capable of doing so this time around.
Bayern coach Pep Guardiola, who won the Champions League twice with Barcelona, has some of the best players in the world at his disposal.
The Germans, who are unbeaten at the top of the Bundesliga, are favourites for the trophy, just ahead of Real Madrid and Barca.
United or Chelsea would have trouble shackling Real star Cristiano Ronaldo, who needs two goals to break Lionel Messi's record of 14 in one Champions League campaign.
Messi helped Barca to a 4-1 aggregate win over Manchester City in the previous round while Atletico beat AC Milan 5-1.
Last year's beaten finalists Dortmund have some of the most exciting players on the continent and with hundreds of millions of pounds' worth of talent at their disposal, PSG would also be formidable opponents.
The first legs of the quarter-finals will take place on April 1 and 2, and the return fixtures will be played the following week as teams bid to reach May 24's final in Lisbon.