David Nalbandian’s countryman, Juan Martin Del Potro, has been defeated by the Swiss superstar Roger Federer in a Group B match of the ongoing ATP World Tour Finals. Federer won the match in three sets by 4-6, 7-6 (7-2), 7-5.

With this win, Federer has reached the semi final round where he will face his arch rival Rafael Nadal.

Federer had lost his last 3 matches against Del Potro and he seemed to be on his way of losing another one against his Argentinean rival as he lost the first set, but, he re-gathered his focus after that and came on top in the next two sets to win the contest.

Overall, it was the 20th match between these two players and Federer defeated Del Potro for the 15th time.

Talking to the reporters in the post match interview, Federer said, “I wasn’t fluent, but, I tried to hang in there and I am delighted that I ended up winning. Probably, luck also favoured me on a few occasions.”

“I don’t have enough time to rest. There is another game for me tomorrow. Hopefully, I continue in the same way and make things tough for Rafa.”

Federer’s start against Del Potro was horrible. He lost his serve in the very first game of the opening set. The next 3 games went with the serve and then, in the 5th game, Federer’s serve was broken again. Now, to recover from there was not easy at all for the Swiss maestro. He did get a breakthrough in the 8th game and managed to reduce Del Potro’s lead to 5-3, but, that was not enough. He needed one more breakthrough which he didn’t get and Del Potro held his serve in the 10th game to finish off the set.

Federer began poorly in the second set as well. He dropped his serve in the 3rd game and got down by 1-2, but, he broke back in the 6th game to level the scores. There were no breakthroughs in the next 6 games and the set went into the tie breaker.

In the tie breaker, Federer was the dominant player. He had no problems whatsoever in pulling that off.

Federer seemed to be losing his focus in the decider as he lost the first 3 games in a row. But, he managed to equalize the proceedings with a breakthrough in the 5th game and a serve hold in the 6th game.

Both the players held their serve in the next 4 games and then, in the 11th game, the Swiss maestro got another breakthrough which took him ahead by 6-5. He served out the next game and with that, he secured his entry into the next round.