Revealed! Facebook’s top 10 biggest sports stars in 2015, including Lionel Messi and Cristiano Ronaldo

Facebook have named the biggest sporting stars on their social media network for 2015.

From Barcelona's clinching of the treble at the end of last season to Ronda Rousey's shock defeat to Holly Holm at UFC 193 last month, this year has been another spectacular 12 months of sport.

And Facebook have released the top 10 most popular sportsmen and sportswomen, according to how frequently an athete's name was mentioned in a post in 2015.

Take a look at the list by clicking the yellow arrow above, right.