1) Aggressive player 2) Aggressor 3) Antagonist 4) Assailant 5) Assaulter 6) Intruder 7) Invader 8) Mugger 9) Offender 10) One on the offensive 11) Raider 12) Soldier at work 13) Someone who attacks 14) Sports terminology 15) Trespasser 16) Wrongdoer 1) Aggressor 2) Ambusher 3) Assailant 4) Assaulter 5) Avenger 6) Bludgeoner 7) Critic 8) Foe 9) Harrier 10) Hooligan 11) Lapidator 12) Marauder 13) Nightrider 14) Piranha 15) Predator 16) Raper 17) Rapist 18) Retaliator 19) Robber 20) Roughneck 21) Ruffian 22) Shedder 23) Slasher 24) Spiller 25) Stabber 
In some sports, an attacker is a specific type of player, usually one whose role involves aggressive play. Heavy attackers are usually placed up front so they can score some points for the team. In football, attackers are also referred to as strikers. ...
see Striker.
• (n.) One who attacks.
A player who spikes or hits the ball over the net.
any player on the team that has possession of the ball.
Also 'hitter' and 'spiker.' A player who attempts to hit a ball offensively with the purpose of terminating play in his or her team's favor.
At·tack'er noun One who attacks. 
[Soccer] any player on the team that has possession of the ball.
A player whose job is to play the ball forward towards the opponent's goal area to create a scoring opportunity.
[n] - someone who attacks
Any player on the team that has possession of the ball. 2. All players on the team are attackers / attacker.
aggressor noun someone who attacks