Roger Federer has described sealing a record 300th week as world number one as 'one of the biggest accomplishments' of his career.
The 31-year-old made sure of the feat with victory over fellow Swiss Stanislas Wawrinka in the third round of the Shanghai Masters on Thursday.
"I never thought of something like this when I was a little kid, that's for sure," said Federer. "I was just hoping one day my dream was going to come true to play on the regular tour, play Wimbledon, maybe become world number one at some stage.
"So here I am at 300 weeks. It's pretty incredible. Probably one of my biggest accomplishments. I'm very proud of that record, no doubt about it."
The 17-time Grand Slam winner first reached the top of the world rankings in February 2004.
