Wimbledon diary: Quad tennis debuts and prodigious presidential progeny

A descendant of Ulysses S Grant takes to the court while Andy Lapthorne makes dreams a reality in quad tennisNew kids on the blockWhile the crowds have diminished and half the courts lie vacant, it’s marquee tennis all the way for the remainder of this year’s Wimbledon. On Thursday, that meant the advent of quad tennis. Played by wheelchair athletes who have substantial loss of function in at least one upper limb, it featured in exhibition matches in 2018, but this year entered compe