New Delhi: Tennis is a sport that is watched and enjoyed by millions of sports enthusiasts with passion across the world. But there are some facts about tennis which are less known to the lovers of this sport. Here we present 10 interesting facts about tennis: 1. In 1874, Major Walter Clopton Wingfiled patented tennis under the name 'Sphairistike'.2. 'Sphairistike' was a Greek word meaning Ball Game.3. Lawn Tennis was derived from Real or royal tennis played on an enclosed Court. 4. Initially tennis was played on an hour-glass shaped court with a net that was 4ft 8in high. A modern net is 3.5ft at the posts, 3ft in the middle.5. In 1875, rectangular courts were introduced to the sport by the 'All England Croquet Club' at Wimbledon when it decided to induct tennis to its repertoire.6. In 1877, Spencer Gore was the first ever player to win Wimbledon.7. Goran Ivanisevic, the only wimbledon champ whose name alternates both consonants and vowels.8. Recommended Snoring remedy was sewing a tennis ball into the back of a person's pyjama.9. In 1498, Charles VIII of France died after crashing into the door of Royal tennis court.10. The ball is only in play for about 20 minutes of an average two-and-a-half-hour tennis match.