For a one hundred and forty character tweet endorsing your product, you’ll have to pay Lebron James $140,000. That’s $1,000 per character.

That’s what the research of Openendorse has shown. The company specialises in monetising and digitalising social media campaign for athletes, and have estimated that as the value of a James tweet.

The Cleveland Cavaliers forward has 23.2 m twitter followers.

Checking for other athletes, the company drew a top five list. Kobe Bryant and Floyd Mayweather Jnr all make appearances. It’s incredible the avenues the mega rich have to make money these days.

Here’s the top five most expensive athletes to endorse your product…