LONDON: Frances Tiafoe can test you with his chatter. Sometimes it's banter. He talks in spurts, and the decibel level dwindles from a mumble to barely audible.
The world No. 10's serve however is making thunderbolt noises at Wimbledon, where he's into the third round. The American's serving statistics after his first two outings read - 37 aces, 76 percent of points won on first serve, 50 percent on the second. He has saved 11 of 15 breakpoints.
