MotoGP™🏁 on Twitter: "2013 World Champions @PolEspargaro, @marcmarquez93 & @maverickmack25 Viñales: http://t.co/5UUHK5r3p0 http://t.co/A5DlUgq6Hg" / Twitter
2013 MotoGP World Championship - Wikipedia
MotoGP 2013: Valencia Grand Prix – Power Five - The Checkered Flag