Carra wrote in the Daily Mail: "Chelsea shouldn't be keeping pace in this title race. With three forwards who have managed just eight league goals between them, they should be watching Manchester City disappear into the distance.
"But Chelsea - the team I tipped for the title at the start of the season - are right in the thick of it because they have the ultimate big-game manager.
"Do not underestimate how influential Jose Mourinho will be as the season reaches its climax.
"Showdowns like Sunday's with Manchester United make Mourinho tick. He comes alive in the build-up and has a way of dominating the agenda. As an opposition player, it complicates things as you find yourself thinking about him as much as the players you have to stop in the game."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball