Ryan Porteous admits Scotland have to tighten up after the 4-0 defeat by Netherlands on Friday made it 18 goals conceded in six winless games.
Steve Clarke’s side started well in the first half of the friendly at the Johan Cruijff Arena in Amsterdam until the Dutch took the lead against the run of play five minutes from the break with a powerful Tijjani Reijnders drive.
Scotland striker Lawrence Shankland missed a glorious chance in the 62nd minute when he was through against Dutch goalkeeper Mark Flekken with the Hearts captain clipping the crossbar with his shot.
It started to go really downwards for the Scots 10 minutes later when Georginio Wijnaldum headed in a second before substitutes Wout Weghorst and Donyell Malen added late goals.
Scotland have…