Serena Williams is 40 years old and recently returned from 12 months out with an injury, but Andy Roddick has not ruled out her chances of further success, including winning an eighth Wimbledon title in the future.
Williams made her long-awaited return to the sport at this year's Wimbledon Championships. She had not played a singles match since last year's tournament at SW19 after suffering an injury during her first-round match against Aliaksandra Sasnovich.
Unfortunately for the 23-time Grand Slam champion's fans, Williams' comeback ended in a 5-7, 6-1, 5-7 defeat to Harmony Tan. She was understandably rusty after so long out, and her legs also began to tire in the closing stages of the third set.
Some have questioned whether Williams can return to the top of the women's game. Competing in the biggest tournaments at 40 is hard enough, but she is also trying to get back up to speed after an extended period away from the sport.
However, 2003 US Open men's singles champion Roddick has refused to rule out his compatriot's chances. Speaking on the Kasich and Klepper Podcast, he said if anyone can shock people, it is Williams.
"l will tell you one thing, I am happy to see her back, I am happy to see her try. You know if anyone can kind of pull a rabbit out of that hat, it is Serena. I don't know that she could win at the other slams, but Wimbledon I think definitely gives her the best chance at this point in her career."
Roddick was just 30 when he retired from the sport. However, he has watched players like Novak Djokovic, Rafael Nadal, and Roger Federer continue to win Grand Slams well into their 30s. Williams doing that at 40 is an even bigger challenge, but it is wise not to rule out her the tennis legend's chances.