Beating Djokovic, the former world No 1, for only the second time in 16 matches put the broadest of smiles on the face of Cilic, who saved a match point in the second set and held his nerve admirably in the third. "I'm really pleased with the way I have played throughout the whole week".
Kyrgios continued his playful mood into the match and was spotted focusing more on games with his team in the stands than on his match with Cilic.
"It's special to play here and I've played great tennis throughout the week and it's great to have another shot at the title", the 2012 Queen's champion said on a sunny centre court.
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"Even when you come back on the tour, you need to still be patient, because it's not going to come back like that and you're going to be the same player as one year before", said Wawrinka. Djokovic said when asked how he would cope with the power of Cilic's serve.
The double Wimbledon champion had reached the final without dropping a set but was made to work by the Slovakian, who won the Birmingham title in 2009. The Serb returned superbly to force a match point but the Croatian fended it off with some big-serving.
The top seed raised his game when it mattered most, winning both tiebreakers against the Australian in a match which featured no breaks of serve.
Winning the longest final in Queen's history - at two hours and 57 minutes - was just reward for Cilic's superb week on the lawns of Barons Court, which banked him a cheque for?413,601 ($548,764). I played a lot of three-setters and a lot of tennis.
But Kvitova proved a different proposition for the remainder of the match, breaking twice in the second set while having to save only a single break point against her serve.