Federer has struggled in 2013 with only one trophy to his name and early exits at Wimbledon and the US Open, leading many to suggest the record 17-time grand slam champion may call it quits sooner rather than later.
However, Henman has hit out at those suggestions and believes the 32-year-old will bounce back.
"A lot of people question Roger and ask 'is he going to retire soon?'" Henman told the Metro.
"But I think we should just enjoy watching him while we can. He's the best player that has ever lived and it's going to be a long time before we see another player like him."
Federer has slipped to fifth in the world rankings, but was as low as seventh not so long ago. Henman though says the greatest player of all-time cannot be disregarded in future events.
"Roger is 32 now and it doesn't get any easier to bounce back," Henman said.
"However, he's won so many titles and has so much experience, it's far too early to be writing somebody like that off. He hasn't had the best year but he's still motivated and he loves playing the game. He'll be back soon."
Date: 22nd September 2013, Source: ESPN