This weekend's GK nugget has some of the lesser known facts about 1 of my favourite sports, tennis. It's the final weekend of  Wimbledon, one of the few times in the year when even non-tennis fans want to know who lifts the prized trophy at SW19. But wait, have you ever wondered why Wimbledon is also referred to as SW19? Simple, that's the postcode of the locality. Here are some lesser known info nuggets about the most famous & the (widely considered) most prestigious of the tennis grand slams. (There are 4 tennis grand slams in the year - the biggest tennis tournaments - Australian Open, French Open, Wimbledon & US Open).  Wimbledon is the oldest tennis tournament in the world, started in 1877, and the only major tournament still played on a grass court. The grass on the courts is tended year round and cut down to 8mm before the tournament. Wimbledon is notable for the longest running sponsorship in sports history due to its association w...