The phrase "opponent player" refers to someone who is playing against you in a game or competition. They are the person or team you are directly attempting to defeat or outperform. Full definition
Before he becomes the subject of on - pitch attack by opponent players and managers game plans like «OPERATION - TARGET - SANCHEZ»..... (justarsenal.com)
Players can unleash super assaults on their opponents (metacritic.com)
Fast opponent players could out pace the slow DM and attack our one of our slow CBs. (justarsenal.com)