Cilic in career-best form

<div class="separator" style="clear: both; text-align: center;"> <a href="http://cache.images.core.optasports.com/news/tennis/2014/9/5/635093header.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img alt="Marin Cilic" border="0" src="http://cache.images.core.optasports.com/news/tennis/2014/9/5/635093header.jpg" title="Marin Cilic" /></a></div> Marin Cilic said he believes he is in career-best form after reaching the US Open semi-finals on Thursday.<br /> <br /> The Croatian 14th seed was too good for Czech sixth seed Tomas Berdych in a 6-2 6-4 7-6 (7-4) win at Flushing Meadows in their quarter-final.<br /> <br /> Cilic's last-four appearance marks the second time he has been in a grand slam semi-final – and first since the 2010 Australian Open.<br /> <br /> The 25-year-old said he was at his best in New York, but refused to be satisfied too easily.<br /> <br /> "I feel I'm playing probably the best tennis of my career. I think what helped me also was the consistent play over last five, six months," Cilic said.<br /> <br /> "This year I haven't lost too many matches against guys who are lower ranked than me. That's always very positive.<br /> <br /> "So overall in the game I feel I'm playing well but I'm not getting satisfied too easy. I'm happy, but I still want to do well.<br /> <br /> "I feel that it's still a lot to improve even in some matches. I want to keep going.<br /> <br /> "Now I made it to the semis and it's completely different for me now atmosphere than what I have been in 2010.<br /> <br /> "At that time was maybe a little bit, too shocked for me and I didn't know how to deal with it afterwards. But now I'm, you know, cool and it's going well."<br /> <br /> Cilic said he deserved his semi-final appearance in Melbourne in 2010, but felt he could still improve on his current form.<br /> <br /> "I would say I deserved it at that time, too, to be in [a] semi-final, but I was putting more pressure on myself with the expectations," he said.<br /> <br /> "I wanted to do too well. Like on each match, on each training session, I was looking from my own self for too much.<br /> <br /> "Then after a couple of months everything breaks, so I feel now I'm steadily progressed a lot. I feel like I'm playing well but still I want to, I feel like I can still improve."<br /> <br /> <iframe allowfullscreen="" frameborder="0" height="315" src="//www.youtube.com/embed/skVXHPRz8P4" width="420"></iframe>

Marin Cilic tennis Tomas Berdych US Open Cilic in career-best form

Marin Cilic said he believes he is in career-best form after reaching the US Open semi-finals on Thursday. The Croatian 14th seed was to...

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