Real Madrid manager Carlo Ancelotti says Cristiano Ronaldo is a 'one-off ' in terms of professionalism , and the best player he as ever seen in matches . Ronaldo has suffered a slump in form since turning 30 and being named World Player of the Year for the second time earlier this year . But Ancelotti backed the Portuguese forward to get back to his best thanks to his incredible work ethic and unique drive . Cristiano Ronaldo trains with his Real Madrid team-mates ahead of the Clasico on Sunday in Barcelona . The Real Madrid star has been praised for his incredible professionalism by manager Carlo Ancelotti . Ancelotti ( centre ) says that Ronaldo is the best player he has ever watched in matches . ' A lot of people would be really surprised by him , ' Ancelotti told FIFA.com . 'As I ’ ve said many times before , he ’ s a player who ’ s a one-off in terms of professionalism and responsibility , even at this level . 'He was born with extraordinary talent , but he squeezes the juice from and works on that talent thanks to a level of drive I ’ ve seen in few other players . ' The Real boss added that Ronaldo is the player he enjoys watching more than anyone , surpassing his previous favourite Zinedine Zidane . Ronaldo attempts a spectacular volley in the recent match against Levante at the Bernabeu . The three-time Ballon d'Or winner has endured a frustrating time of things of late , with the goals drying up . Ronaldo will need to rediscover his best form if Real Madrid want to close the gap on Barcelona in La Liga . 'Zidane was the player I most enjoyed in training , but Ronaldo ’ s the one I enjoy most in matches – he scores in virtually every game ! ' said Ancelotti . By the time Real kick off their Clasico at Barcelona on Sunday , it will be a month to the day since Ronaldo last scored a goal from open play in La Liga . Ancelotti will hope his prediction of Ronaldo scoring in every game comes true this weekend , if his side are to close the gap on their great rivals at the top of the table . Ronaldo ( left ) trains in a snood as Real Madrid are put through their paces on Friday morning . Ancelotti will be hoping his stars can reproduce their form of the early part of the season on Sunday .
Cristiano Zidane is better to watch than Ronaldo claims Real Madrid boss . Zidane has had a slump in form , but Ancelotti thinks he will recover . Real manager claims the player 's work ethic sets him apart . READ : Zidane could make an emotional return to Manchester United . CLICK HERE for all the latest Real Madrid news .