ESPN.co.uk |
John Isner needs an hour to advance, while Juan Martin del Potro …
ESPN.co.uk The big-serving American is in the semifinals of the Miami Open for the second time in the past four years after overpowering South Korea's Hyeon Chung 6-1, 6-4 in just over an hour Wednesday afternoon. The 14th-seeded Isner finished with 13 aces, won … |