The phrase "athlete working" is correct and usable in written English.
It can be used to describe an athlete who is currently engaged in a task or activity related to their sport, such as training or competing.
Example: "The athlete working on their technique showed significant improvement during the practice session."
Alternatives: "athlete training" or "athlete practicing".
One promising athlete working under Francis later quit the sport because "even Ben is beating me".
She found Joseph DeSantis, a star athlete, working at Rudy's bar in Cliffside Park and eager to reminisce.
The snowboarder Shaun White, a gold medalist at the 2006 Winter Games and perhaps the most recognized athlete working toward February's Olympics in Vancouver, earned a spot on the American team by winning Saturday's United States Snowboarding Grand Prix competition at Mammoth Mountain in California.
Anything else I remember about him is likely to be inaccurate, colored by news reports and my own projections onto the image I hold of the retired athlete, working to establish an identity post-sport.
She headlined in Firebird, a world-renowned ballet by the Russian composer Igor Stramazing--an amazing feat and honor in ballet--and then became an Under Armor-sponsored athlete, working on the campaign "I Will What I Want".
Over her lifetime as an athlete, working with so many inspiring coaches and having people surrounding her that made such a huge impact on her, Ann learned a few life lessons.
The 30-year-old Maryland athlete worked out in solitude Wednesday while other members of the team performed under the sharp eye of Coach Szanto.
After settling into his new job, he saw the quality of the athletes working out around him in the gym.
Mr. Fusaro said he tried to keep his athletes working out at school, not at the local gyms.
So I bringing them back slowly in all disciplines - this month I don't want my athletes working to more than 85% of their heart rate, and for most of the time it will be less than that.
"For professional athletes, working out is almost a full-time job," she said.
