How many players do you need to play soccer?

It depends on what age level. On some you play 8v8, but when you get older you play 11v11

11 players start for a soccer team. 2 teams of 11 players play against each other in a match so 22 players are on the pitch are on the pitch -- 3 substitutes are allowed in competitive matches

There are eleven players on a soccer team - one goalkeeper, and ten outfield players.In most professional matches teams are allowed five substitutes in the squad, of which they can use three.

for proper games, each team starts with 11. However, each team must have at least 7 players on the pitch, or else the match would be abandoned.

every one has the same amount of muscles it just depends on how big they are.