We saw Roger and Rafa play doubles together at the Laver Cup a few weeks ago but did you know that there have been a few doubles combos featuring the Big 4 (Federer, Nadal, Djokovic, and Murray)? I knew they all played doubles with other partners but I had no idea that Nadal and Djokovic teamed up in Toronto in 2010 or that Murray and Djokovic teamed up in Miami in 2011.