 Complete the following phrase:  At the World Championship OSullivan saw off former world champions in each of his first three matches. He beat Peter Ebdon 104 in the first round, Mark Williams 136 in the second, and Neil Robertson 1310 in the quarter-finals. He beat two-time runner-up Matthew Stevens 1710 in the semi-finals, and defeated Ali Carter 1811 in the final, to win his fourth world title. Aged 36, and just 40 days older than Dennis Taylor was when he won the title in 1985, OSullivan became the oldest world champion since 45-year-old Ray Reardon in 