By Georgina Turner
March 05, 2013
Cristiano Ronaldo, who leads the Champions League in goals, scored in the first leg's 1-1 draw.
Andres Kudacki/AP

Two of the world's greatest clubs will take the field at Old Trafford on Tuesday, but only one will advance to the Champions League quarterfinals. Manchester United was in the driver's seat after a 1-1 draw in the first leg. Now, Real Madrid must get an away goal -- at least -- to keep from being eliminated. Join the chat with Georgina Turner below at 2:30 p.m. ET.

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