 Complete the following phrase:  In 2007, Stevens lost 1213 to Shaun Murphy in the quarter-finals of the World Championship, having led 115 and 127 earlier in the match, making him the first person to ever lose a best-of-25 match from a 127 lead. The defeat left him ranked outside the top 16 for the first time in eight years. In 2008, he was defeated in the first round of the 