Reigning MotoGP world champion Jorge Lorenzo embarks on the new season with an aim to defend his title from a grid that consists of three former champions. The Spaniard clinched his maiden title with the factory Yamaha team - with which he made his 2006 premier class debut - by winning half the races of the 2010 calendar after just three seasons with the squad. The fact that he outshined teammate Valentino Rossi makes it even more notable. Lorenzo started his career in 2002 in the 125cc class and moved onto the 250cc category in 2005, clinching back-to-back titles in 2006 and 2007. He entered the premier class the following year. He finished fourth and runner-up in his first two seasons, but his maturity in the top level saw him convert his potential into a title in 2010. For 2011, the Mallorcan now looks to emulate his 250cc achievements.