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.
There can be up to four players at a time in a badminton court. A match can be between two players, or it can be between teams of two. One-on-one matches are called singles, while two-on-two matches are called doubles. There are five formats in competitive badminton - Men's singles, Men's doubles, Women's singles, Women's doubles, Mixed doubles.