As a teenager, Andy Murray said that just making the world's top 10 was what he aimed to achieve from his career.
He has long since exceeded those aims. He is now potentially 15 days away from becoming the world number one for the first time.
After winning his second Wimbledon title earlier this year, the 29-year-old admitted that he would "love to get to number one".
"It's definitely a goal. It's something I spoke to my team about.