<p class="title">Roger Federer warned temperamental Australian Nick Kyrgios on Tuesday that he would never fulfil his potential without the work ethic to go with his talent.</p>.<p class="bodytext">The 23-year-old Kyrgios made another contentious exit from the Shanghai Masters on Monday after a running argument with the chair umpire who suggested his efforts were "borderline".</p>.<p class="bodytext">The 38th-ranked Kyrgios was on the end of a surprise first-round loss to the American qualifier Bradley Klahn, the world number 104 winning 4-6, 6-4, 6-3.</p>.<p class="bodytext">It is the third time in as many Shanghai appearances that Kyrgios has departed the Masters 1000 event under a cloud.</p>.<p class="bodytext">Federer, who is the top seed and the reigning champion in Shanghai, called Kyrgios "a great player". But he also sounded a note of caution.</p>.<p class="bodytext">"I think it's really up to him where he wants to go and what his potential really holds," said the 20-time Grand Slam winner.</p>.<p class="bodytext">"We don't really know and I don't think he really knows exactly what his potential is.</p>.<p class="bodytext">"And only through understanding work ethic and scheduling and whatever it might be, creating the right team around himself, only then can you unlock the potential, really."</p>.<p class="bodytext">Federer, who admitted that the hard graft did not necessarily come naturally to him either, backed Kyrgios to "win bigger tournaments and do all these things".</p>.<p class="bodytext">"But there is still a process in place that he needs to do like any other player needs to go through in order to be successful," he added.</p>.<p class="bodytext">Australian doubles great Todd Woodbridge said the scheduling of Shanghai, a compulsory tournament at the tail-end of the season, seemed to be a problem for Kyrgios.</p>.<p class="bodytext">"Nick plays his best tennis when he's fresh, when he's enjoying himself and he's engaged," said Woodbridge, according to the Melbourne Age.</p>.<p class="bodytext">"When he has to go somewhere and that isn't the case, we see him a little jaded and we see him play the way that he did... Scheduling is huge for him. He gets tired and then it's regrettable for him."</p>
<p class="title">Roger Federer warned temperamental Australian Nick Kyrgios on Tuesday that he would never fulfil his potential without the work ethic to go with his talent.</p>.<p class="bodytext">The 23-year-old Kyrgios made another contentious exit from the Shanghai Masters on Monday after a running argument with the chair umpire who suggested his efforts were "borderline".</p>.<p class="bodytext">The 38th-ranked Kyrgios was on the end of a surprise first-round loss to the American qualifier Bradley Klahn, the world number 104 winning 4-6, 6-4, 6-3.</p>.<p class="bodytext">It is the third time in as many Shanghai appearances that Kyrgios has departed the Masters 1000 event under a cloud.</p>.<p class="bodytext">Federer, who is the top seed and the reigning champion in Shanghai, called Kyrgios "a great player". But he also sounded a note of caution.</p>.<p class="bodytext">"I think it's really up to him where he wants to go and what his potential really holds," said the 20-time Grand Slam winner.</p>.<p class="bodytext">"We don't really know and I don't think he really knows exactly what his potential is.</p>.<p class="bodytext">"And only through understanding work ethic and scheduling and whatever it might be, creating the right team around himself, only then can you unlock the potential, really."</p>.<p class="bodytext">Federer, who admitted that the hard graft did not necessarily come naturally to him either, backed Kyrgios to "win bigger tournaments and do all these things".</p>.<p class="bodytext">"But there is still a process in place that he needs to do like any other player needs to go through in order to be successful," he added.</p>.<p class="bodytext">Australian doubles great Todd Woodbridge said the scheduling of Shanghai, a compulsory tournament at the tail-end of the season, seemed to be a problem for Kyrgios.</p>.<p class="bodytext">"Nick plays his best tennis when he's fresh, when he's enjoying himself and he's engaged," said Woodbridge, according to the Melbourne Age.</p>.<p class="bodytext">"When he has to go somewhere and that isn't the case, we see him a little jaded and we see him play the way that he did... Scheduling is huge for him. He gets tired and then it's regrettable for him."</p>