Arsenal's Dutch forward Robin van Persie believes that his compatriot Guus Hiddink is turning around Chelsea fortunes through a magical ability. Hiddink, who also manages Russia, succeeded Luiz Felipe Scolari as Chelsea boss in February. The Blues lost just once under his guidance as they fight on three fronts – the Premier League, the FA Cup and the Champions League. Van Persie could not hide his admiration for the 62-year-old coach ahead of Arsenal's clash against Chelsea in the FA Cup semi-final on Saturday. "He is unbelievable. Everything he does turns to gold," he was quoted as saying by Arsenal's official website on Friday. "The first thing I thought when he came was 'oh no', Chelsea are still in the FA Cup and Champions League and he will win something. "When I saw him two years ago in Holland, because we use the same physio sometimes, I asked to see his hands. He said 'yes, why?' I said that everything he puts his hand on turns to gold. He was laughing. He is fantastic." Van Persie, who has been in superb form of late, will be looking to expose Chelsea's defensive frailties nevertheless. "In the last two games they conceded seven goals. Earlier in the season we showed we can do that damage against them," the 26-year-old added.