Tennis: Del Potro wins fourth set of Wimbledon semi-final

Juan Martin del Potro levelled his Wimbledon semi-final against Novak Djokovic on Friday when he won the fourth set 7-6 (8/6).

Djokovic won the first set, 7-5 while Del Potro took the second, 6-4.

The top seed then claimed the third set on a tiebreak 7-6 (7/2).

The winner will face either Andy Murray or Jerzy Janowicz in Sunday's final.