We can't lipread so well here at balls.ie so we can only suggest that the small lad was telling the Peter Crouch like figure of Ivo Karlovic to "hit it hard, hit it fooking really hard Ivo, they won't expect it, infact its the tactic they will expect the least"
Ivo Karlovic set a new world record with a 156 mph (251 km/h) serve in Davis Cup World Group first round doubles match against Germany. The previous record of 155 mph (249.4 km/h) was set by Andy Roddick in a Davis Cup semifinal in 2004.
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