Analysis of information sources in references of the Wikipedia article "Federer–Nadal rivalry" in English language version.
Roger Federer v Rafael Nadal. Time span: '04-present (18 matches). Head to head: Nadal 12, Federer 6. Grand Slam finals: Six; Nadal leads 4–2. Wimbledon: Three finals, 2006, 2007; 2008; Federer won first two, Nadal won Sunday's epic. After Sunday there can be no doubt these two now rank alongside the great tennis rivalries.
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