<p>Roger Federer welcomed the return to tennis of Rafael Nadal, but will not spend much time worrying about his long-time rival's progress as he concentrates on his own game with a Wednesday start at the Rotterdam World Tennis.<br /><br /></p>.<p>While Federer was making his preparations, there was disappointment on court for third seed Jo-Wilfried Tsonga as the French player went down to Igor Sijsling of the Netherlands 7-6 (7/3), 4-6, 6-4.<br /><br />Even 14 aces could not help Tsonga in the two-hour match, with the seed converting only one of eight break point chances.<br /><br />Tsonga, a finalist here in 2011, saved a match point in the final game but lost his serve a few moments later to make a surprise first-round exit.<br /><br />"This is not my worst moment, but I'm disappointed," said Tsonga. "I missed four or five of the same volleys on key points. That was the difference.<br /><br />"He was serving very well and I was always chasing the score. I didn't play a bad match, just missed my chances. I was missing on shots that I usually make. But I will keep working hard and try to improve things."<br /><br />Tsonga's s compatriot the fifth seeded Gilles Simon moved into the second round with a 7-6 (7/3), 6-4 victory over German qualifier Daniel Brands.<br /><br />Romanian Victor Hanescu accounted for the week's first seed with his defeat of seventh-seeded Jerzy Janowicz 7-6 (7/4) 6-3. The Pole had made a breakthrough last autumn at Paris Bercy by reaching the final after coming through qualifying.<br /><br />Grigor Dimitrov ended a four-match losing streak with a win over Australian Bernard Tomic 6-3, 3-6, 6-3.<br /><br />Top seed Federer, defending his 2012 trophy said he has arrived relaxed and eager as he plays for the first time since losing a tight Australian Open semi-final to Andy Murray, then taking time off with his family in his homes in Dubai and Switzerland.</p>
<p>Roger Federer welcomed the return to tennis of Rafael Nadal, but will not spend much time worrying about his long-time rival's progress as he concentrates on his own game with a Wednesday start at the Rotterdam World Tennis.<br /><br /></p>.<p>While Federer was making his preparations, there was disappointment on court for third seed Jo-Wilfried Tsonga as the French player went down to Igor Sijsling of the Netherlands 7-6 (7/3), 4-6, 6-4.<br /><br />Even 14 aces could not help Tsonga in the two-hour match, with the seed converting only one of eight break point chances.<br /><br />Tsonga, a finalist here in 2011, saved a match point in the final game but lost his serve a few moments later to make a surprise first-round exit.<br /><br />"This is not my worst moment, but I'm disappointed," said Tsonga. "I missed four or five of the same volleys on key points. That was the difference.<br /><br />"He was serving very well and I was always chasing the score. I didn't play a bad match, just missed my chances. I was missing on shots that I usually make. But I will keep working hard and try to improve things."<br /><br />Tsonga's s compatriot the fifth seeded Gilles Simon moved into the second round with a 7-6 (7/3), 6-4 victory over German qualifier Daniel Brands.<br /><br />Romanian Victor Hanescu accounted for the week's first seed with his defeat of seventh-seeded Jerzy Janowicz 7-6 (7/4) 6-3. The Pole had made a breakthrough last autumn at Paris Bercy by reaching the final after coming through qualifying.<br /><br />Grigor Dimitrov ended a four-match losing streak with a win over Australian Bernard Tomic 6-3, 3-6, 6-3.<br /><br />Top seed Federer, defending his 2012 trophy said he has arrived relaxed and eager as he plays for the first time since losing a tight Australian Open semi-final to Andy Murray, then taking time off with his family in his homes in Dubai and Switzerland.</p>