Rio Ferdinand fires back at ex-teammate Cristiano Ronaldo after he left a comment on his IG page

Ex-Man U defender Rio Ferdinand fired back at his former Old Trafford team-mate Cristiano Ronaldo on IG yesterday after Ronaldo seemed to troll him.

37 year old Rio Ferdinand uploaded a video clip to his followers on Instagram showing him crawling on the ground with weights in each hand alongside the caption: "Bear crawls this morning...working on core & shoulder stability!! These mornings getting cold & frosty!", to which Ronaldo replied "wtf is that??'

Unimpressed with Ronaldo's comments, Ferdinand recommended that Ronaldo tried the workout for himself.

This post first appeared on Linda Ikeji's Blog. Read the original story here.