By Matt Hardy Mark Cavendish has finished what could be his last ever stage of the Tour de France in Nice on Sunday. The Brit finished his time trial in Nice to end a stellar career in grand touring. He broke a record he shared with cycling legend Eddy Merckx when he won his 35th stage of the Tour de France. When he broke the record he held with Merckx, he said: “I’m in a little bit of disbelief. Astana put a big gamble on this year to make sure we’re good here at the Tour, my boss has done it. “It’s a big gamble to come here to try to win at least one stage, a big gamble for my boss Alexander…