#2 Lionel Messi's curse
The story of Lionel Messi's curse against Chelsea is no secret to the football world. As good as he is against other sides, the Argentine maestro has failed to prove himself against Chelsea on multiple occasions.
In the eight games he has played against the Blues, the Blaugrana forward has failed to score even once from 29 attempts on goal! He also had his penalty denied by the woodwork back in April 2012; the miss proved fatal as Barca crashed out of the Champions League while Chelsea eventually won the competition.
Keeping Leo Messi quiet will be a challenge, but definitely not impossible for Antonio Conte. He has Gary Cahill and David Luiz in his ranks - the duo who successfully held him at bay in 2012. Certainly, he can count on his trusted defenders to do the same, can't he?