Bolt vs Isner: can Alex cope with John's power serve?

Bolt is doing great at the current tournament in Los Cabos. So far, the Australian tennis player had difficulties only in the first-round match against Andreas Seppi, but Alex managed to make a comeback after losing the first set and defeated the Italian veteran in three sets with a score of 0-6, 6-2, 6-3. In the second round, Bolt quite easily outplayed Emilio Gomez in two sets (6-3, 6-1). In total, this season Alex won five matches on hard and lost two.

Isner is finally playing on his favourite surface. John has played most matches in his career on hard. However, in the first round of the current tournament in Los Cabos, Isner had some minor difficulties. The American needed three sets to defeat Evgeny Donskoy (7-5, 3-6, 7-6). Traditionally, Isner's game is built around his powerful serve - in the match against Donskoy, John hit 25 aces.