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.
Change sides after every six points. In normal tennis games, players keep their side for the entirety of the game. In tiebreakers however, players will alternate sides after every point where the total score is a multiple of six. Switching sides during the tiebreaker keeps everything fair.