Melbourne: Former Australia coach Ange Postecoglou has cast doubt on Usain Bolt’s hopes of re-inventing himself as a soccer player and earning a professional A-League contract at the age of 32. However, the Jamaican has yet to be offered a contract and most soccer pundits in Australia have questioned his ability to break into the league. “It seems to have got some good attention for Central Coast Mariners, the club there,” Postecoglou, now coaching Japanese club Yokohama, told local media. “But beyond that I’ve always believed that football is one of those sports that’s very, very difficult to just change from one to the other.”