Dan Walker presents live coverage as Russia and Slovakia, both group rivals of England and Wales, battle it out in Lille.
Russia, the 2018 World Cup hosts, are looking to re-establish themselves on the international scene. They were inaugural European champions in 1960 as the Soviet Union and have finished as runners-up on three occasions.
Slovakia are appearing at their first European Championship. They impressed on their last showing at a major tournament, beating defending champions Italy at the 2010 World Cup en route to the last 16.
Martin Keown, Robbie Savage and Jermain Jenas provide expert analysis, while Guy Mowbray and Mark Lawrenson supply the commentary.