Meet 'Agent 00Fitness': The unstoppable rise of the 'Insta-trainer'
Updated 5:32 AM ET, Mon December 18, 2017
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- Leading athletes posting workouts on Instagram
- Some trainers not known to players' teams
- Insurance against injury raised as issue
(CNN)Hiring personal trainers is officially a trend for leading athletes -- which is both good news and bad news for their teams.