1 Neutrophils: are the most abundant type of white blood cells and are an important part of the innate immune system. 2  Neutrophils are a type of phagocyte (cells which engulf and then digest, cellular debris and pathogens).
BBC Sport tennis. The rules of scoring. The maximum number of sets in a match is five for men and three for women. Usually the first player to win six games wins a set but if the score becomes five-games-all, one player must be two games ahead to win the set. So a player must win the set 7-5 or 8-6 or 9-7 and so on.
Only three of the Grand Slams - Wimbledon, the French Open and Australian Open - play men's singles and doubles over five sets, with no tie-breaker in the last. But, even at the three Grand Slams where a marathon is technically possible, fifth sets rarely go beyond 20 games.