A professional player who competes in sports or games for a living; someone who receives payment for competing (often shortened to 'pro').
彼はサッカーのプロ選手として海外でプレーしている。
He plays abroad as a professional soccer player.
プロ選手になるには厳しい練習と強い意志が必要だ。
Becoming a professional player requires rigorous training and strong will.
この大会には多くの若いプロ選手が出場した。
Many young professional players participated in this tournament.