Meet 'Agent 00Fitness': The unstoppable rise of the 'Insta-trainer'

Updated 5:32 AM ET, Mon December 18, 2017

Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

Story highlights

  • 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.

The days of lazing about on a beach gaining weight during the offseason have been replaced by the likes of Cristiano Ronaldo, LeBron James and Lewis Hamilton posting shirtless workout clips to their millions of Instagram followers.
And they are not alone -- scores of English Premier League, NBA and NFL players, among others, have jumped on board.