There are 4 players on the court in a doubles match.
Two players on each side compete in a tennis doubles match.
Two or four, depending upon whether the match is a singles or a doubles match.
2 teams of 2 players so 4 all together.
No you can bring as many as you want.
2 bounces are allowed in any wheelchair tennis match
They change after the first game of a set, then after that it is after every two games
There are over 1000000000 tennis players in the whole world.
there are 4 players in lawn tennis doubles.