Ai Weiwei could be forgiven for feeling glum after cancelling two exhibitions in Denmark in protest against the country's controversial new asylum-seeker law, but there was better news in Australia, where a top tennis star revealed his love of the Chinese artist's work. Visiting Melbourne for the Australian Open, Milos Raonic relaxed by taking in an exhibition of works by Andy Warhol and Ai Weiwei (until 24 April) at the National Gallery of Victoria. Describing an installation from Ai's Forever Bicycles series as "magnificent in many ways", Raonic mused on the way in which the artist's "story is constantly building". This inspirational outing clearly served the big-serving Canadian well: Raonic reached the semi-finals, where he took world number two Andy Murray to a fifth and deciding set. And although Raonic said that Ai's work is "tough for somebody to put… in their own home", his prize money of $750,000 could make it a little easier.