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.
Introduction Tennis has an unusual scoring system. The score does not go up in units of one or even in units of the same amount. The first point in a game is called 15 and the next 30. So you'd think that the next point should be 45 - but it isn't, it's 40.