Shortest-lived comeback:

Nope, this wasn't one for Ricky Hatton as he made a one-fight return to the ring. Instead, this gong goes to Shane Warne. One day, the papers were awash with quotes from him saying he was planning to return to play for Australia in the Ashes. But no sooner had he said it then the attention-seeking Aussie backtracked and claimed he was done with international cricket.