Portugal vs. Spain
Group B, Fisht Olympic Stadium, Sochi
Portugal and Spain clash in one of the more intriguing matches of the group stage; the winner will have the inside track to finishing atop Group B, which also includes underdogs Iran and Morocco. The Iberian Peninsula rivals have faced off 35 times dating back to 1934, but Friday will mark only their second meeting in the World Cup. In 2010, Spain shut out Portugal, 1-0, on a David Villa goal in the Round of 16 en route to winning the championship in South Africa.