10 things to know for the Champions League final

Dortmund's Robert Lewandowski of Poland controls a ball during a training session at Wembley Stadium in London, Friday May 24, 2013. Dortmund will face fellow German soccer team Bayern Munich in the final of the Champions League at Wembley Stadium on Saturday. (AP Photo/Matt Dunham)

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10 things to kno... Dortmund's Robert Lewandowski of Poland controls a ball during a training session at Wembley Stadium in London, Friday May 24, 2013. Dortmund will face fellow German soccer team Bayern Munich in the final of the Champions League at Wembley Stadium on Saturday. (AP Photo/Matt Dunham)
PSG City Hall ce... Supporter trow a concrete block toward riot police during Paris Saint-Germain soccer club celebrations for winning the the French league title at Trocadero Plaza in Paris, Monday, May 13, 2013. Paris Saint-Germain clinched its first French league title since 1994 by defeating Lyon 1-0 on Sunday. (AP Photo/Michel Euler)
Slim, broadcaste... FILE - In this Jan. 14, 2013 file photo, Mexican telecommunications tycoon Carlos Slim speaks during news conference at the Soumaya museum in Mexico City. Slim recently bought part of two of Mexico's first division soccer teams, setting up another showdown with television giants Televisa and TV Azteca, major players in the soccer field that are in turn trying to push their way into Slim’s telecommunications and Internet markets. (AP Photo/Dario Lopez-Mills, File)
Man United posts... Manchester United's Rio Ferdinand celebrates towards the fans after the English Premier League soccer match between Arsenal and Manchester United at the Emirates Stadium in London, Sunday, April 28, 2013. (AP Photo/Kirsty Wigglesworth)
PSG's title cele... A youth throws a fence toward riot police during Paris Saint-Germain soccer club celebrations for winning the the French league title at Trocadero Plaza in Paris, Monday, May 13, 2013. Paris Saint-Germain clinched its first French league title since 1994 by defeating Lyon 1-0 on Sunday. PSG has now an unassailable seven-point lead at the top of the standings. With just two rounds left, second-place Marseille can no longer catch its fierce rival. This is PSG's first title under Qatar Sports Investments, which took control of the club in the summer of 2011 and spent over 250 million euros on transfers to strengthen the squad. (AP Photo/Michel Euler)
Man U's Alex Fer... FILE - In this Sunday April 14, 2013 file photo, Manchester United's manager Sir Alex Ferguson celebrates after his team's 2-0 win over Stoke in their English Premier League soccer match at the Britannia Stadium, Stoke, England. Ferguson's future with Manchester United future is the subject of fresh uncertainty, with several British newspapers speculating that he is preparing to stand down as manager. (AP Photo/Jon Super, File)
Yankees, Man Cit... New York Yankees president Randy Levine, left, Major League Soccer Commissioner Don Garber, center, and Manchester City CEO Ferran Soriano pose for a photo at the MLS headquarter in New York, Tuesday, May 21, 2013. The New York Yankees are partnering with Manchester City to own Major League Soccer's 20th team, which will be called New York City Football Club and plans to start play in the 2015 season. (AP Photo/Mary Altaffer)
Beckham to retir... Paris Saint Germain's David Beckham celebrates their title after winning their French League One soccer match against Lyon, in Lyon, central France, Sunday, May 12, 2013. (AP Photo/Laurent Cipriani)
Alex Ferguson bl... FILE - This is a Sunday, May 22, 2011. file photo of Manchester United's manager Alex Ferguson as he waves to fans ahead of their English Premier League soccer match against Blackpool at Old Trafford, Manchester, England. Alex Ferguson will retire as manager of Manchester United at the end of the Premier League season after 26 years in charge of the storied club, the team said Wednesday May 8, 2013. (AP Photo/Jon Super, File)
David Moyes leav... FILE - This is a April 22, 2012 file photo of Manchester United manager Sir Alex Ferguson, left, and Everton manager David Moyes during the Manchester United and Everton match at Old Trafford Manchester England . Everton said Thursday May 9, 2013 that its manager David Moyes is leaving the club at the end of the season and wants to replace Alex Ferguson at Manchester United. While United has not yet made an announcement on who will succeed Ferguson at Old Trafford, the statement from Everton clears the way for Moyes to be hired. (AP Photo/Martin Rickett/PA) UNITED KINGDOM OUT