MELBOURNE, Jan 28 (Reuters) - Novak Djokovic's cheque for winning the Australian Open on Sunday was more than the entire annual budget for anti-doping in tennis, a programme many feel is woefully inadequate. Djokovic and Andy Murray left Melbourne on Monday with a combined $3.8 million in their pockets for their efforts over the past fortnight. The total funding for the 2013 anti-doping programme stands at $2 million, paid for by the four grand slams, the International Tennis Federation (ITF) and ATP and WTA Tours. ... More...