Former world's No.1 tennis player Roger Federer is feeling optimistic about his chances next season after coming up with a strong finish in what had been a very miserable year of tennis for the Swiss Maestro.

Federer, who will turn 33 in August next year, said he's happy with the way he finished the 2013 season after having perhaps the worst year of his tennis career.

The Swiss tennis star reached at least the semifinals of his last three tournaments (Basel Indoors, Paris Masters and ATP Tour Finals) to keep him inside the top 6 in the world rankings.

Hoping For Golden 2014

Next year, Federer will attempt to get back to the upper echelon alongside Novak Djokovic, Andy Murray and Rafael Nadal.

With the kinds of results he had towards the end of the season, the Swiss Maestro is optimistic that he can still compete and put himself in position to win several tournaments in 2014.

"I think something is possible for next year. I think it was a stronger finish than I thought it was going to be in Basel, Paris and London. I'm more positive now looking ahead than I would have been a few months ago, when I wasn't quite sure what to expect after the U.S. Open," said Federer via Tennis Tonic.

Feeling Young

Despite his age, Federer stressed that he can still engage in long rallies with young players, and his conditioning has been better than ever.

"What I learned is that I can play three weeks pretty easily," he added. "I played a lot of matches as of late, a lot of three setters, a lot of tennis. From that standpoint, that's very satisfying, knowing that the body can do it, the mind can do it, life allows it to happen," Federer said.

The 17-time Grand Slam champion added that his body can still endure three weeks of top-level tennis without experiencing too much fatigue.

"I'm happy that I have that option, as well, that I know I can play three weeks in a row because I remember Agassi didn't do that at all any more toward the end of his career. He used to play one, maybe two, he would always pull out the third week if there was something planned," Federer said.