The Euro 2016 semifinals have created two fascinating clashes between well-matched sides, the first a contest between two underdogs, featuring the world's two most expensive players, the second a match between the hosts and the world champions. Tactically, these could be brilliant contests.
Portugal vs. Wales
Portugal start this match as the bookmakers' favourites, and yet Wales have played the better football up until this point -- their manager has created a more cohesive system and their star man has been more influential. The more you consider the tactical battle, the more Wales have a genuine chance of reaching the final.