Ronald Antonio "Ronnie" O'Sullivan (born 5 December 1975), is an English professional snooker player known for his rapid playing style and nicknamed "The Rocket". He has been World Champion on three occasions (2001, 2004 and 2008), and has been the world's no. 1 player on five occasions, has won a total of 22 ranking titles, and is second, behind Stephen Hendry, on the list of competitive century breaks.