Murray began the 4th set up two sets to one. Dimitrov jumped out and won the first three games, before Murray finally got the set tied up at 5-5. As Murray won the next game to take a 6-5 lead, Dimitrov slammed his racquet to the ground, completely destroying it. That's what I like to see!
And now Murray bounces one right off of the net for match point. That was a great 4th set.