Andy Murray will play Serbia's Novak Djokovic in the final of the Miami Masters tennis tournament after defeating Juan Martin Del Potro in three sets,
The British fourth seed took the first 6-1 but the Argentinian, who ousted the world number one Rafael Nadal, came back to win the second 7-5 before Murray regained his composure to take the third 6-2.
Earlier an out-of-sorts Roger Federer smashed his racket in frustration as he lost in three sets to Djokovic.
Federer won the first set 6-3 but struggled after that in windy conditions.
