By Joshua Browne Gareth Southgate has emphasised the critical need for England to perform ‘exceptionally’ to make significant strides at this summer’s European Championships. In recent tournaments, the Three Lions have made a habit of excelling in the group stages but faltering in the knockout rounds – a pattern Southgate is determined to overcome. England are among the favourites to go all the way this summer but Southgate warned his side they will be given nothing in Germany and will have to earn every point they pick up. Speaking to the media on Saturday, Southgate said: “We have to be exce…