Chelsea, Inter and the teams Messi has never scored against

Of all the teams the Barcelona forward has faced, he has failed to hit the net against just 12, including Tuesday's Champions League opponents
A career spent as one of the world's most prolific goalscorers and perennially at the top of the game, Lionel Messi has upset a huge number of teams as a star for Barcelona.
The Argentine's exploits have led the Catalan side to global success and helped keep them within the top echelons of European football.
So consistent has Messi been that it is easier to name the teams he has failed to score against in his senior career since he emerged in Barca's senior side as a 17-year-old in October 2004.