Sport + 运动员
The noun 运动员 (yùndòngyuán) means "athlete" or "sportsperson." It is composed of 运动 (sports/exercise) and the suffix 员 (member/person). It can be modified by a sport name to specify the type of athlete, such as 足球运动员 (soccer player).
她是国家队的游泳运动员。
Tā shì guójiā duì de yóuyǒng yùndòngyuán.
She is a swimmer on the national team.
运动员们每天要训练好几个小时。
Yùndòngyuánmen měitiān yào xùnliàn hǎo jǐ ge xiǎoshí.
Athletes have to train for several hours every day.
这位足球运动员去年退役了。
Zhè wèi zúqiú yùndòngyuán qùnián tuìyì le.
This soccer player retired last year.