Sport + 球员
球员 (qiúyuán) means "player" and specifically refers to athletes who play ball sports such as soccer, basketball, or tennis. It is a compound word combining 球 (ball) and 员 (member). For example, 足球球员 means "soccer player."
那个球员跑得真快。
Nàge qiúyuán pǎo de zhēn kuài.
That player runs really fast.
他是我们队最年轻的球员。
Tā shì wǒmen duì zuì niánqīng de qiúyuán.
He is the youngest player on our team.
很多球员从小就开始训练了。
Hěn duō qiúyuán cóng xiǎo jiù kāishǐ xùnliàn le.
Many players start training from a young age.