Thomas Tuchel urges England to improve defence against Ghana after ‘wake-up call’

Win over Ghana could secure top spot in the group‘We dropped too deep,’ Tuchel says of Croatia openerThomas Tuchel believes England were given a wake-up call by Croatia and must focus on improving their defensive structure as the World Cup progresses.England will qualify for the knockout stages from Group L with a game to spare if they beat Ghana in Boston on Tuesday night, and will top the group if Panama then fail to beat Croatia in the later game, but Tuchel is determined not to take ­anything for granted.…