Roger Federer instantly knocked out while performing at the Mercedes Cup in Stuttgart, Germany

News24xx.com - Roger Federer comeback in tennis tournament ended bitter. Switzerland tennis player instantly knocked out while performing at the Mercedes Cup in Stuttgart, Germany.

Federer, the top-seeded, so could not advance further after unintentionally defeatedby Tommy Haas in the second round on Wednesday, June 14 2017.

After win in the opening set, he finally surrendered to Haas with a score of 6-2, 6-7, and 4-6.

Federer actually had time to reach match point in the second set. However, the 35-year-old tennis player that failed and let Haas rose.

"If you do not utilize the opportunity like I am, then at the end you can only blame yourself. You have to admit that he's a little better. This is enough to make his frustration, but sometimes that's how happened," said Federer after the match.

"Not everything is bad, not at all. Of course there are some nice moments, but I am who as sharp as I expected in the important moments. I made some crucial mistakes and wrong judgements,"as quoted in the official site of ATP.

Mercedes Cup tournament was the first tournament that he followed after resting for two months.

Federer is absent from a number of important tournaments, including France open, after won the Miami Open in early April.