Morocco head coach Walid Regragui promised more is to come from his side, who advanced to the round of 16 at the World Cup for the first time in 36 years with a 2-1 win over Canada.
Japan produced a stunning comeback to beat Spain 2-1 and secure top spot in World Cup Group E.
Morocco advanced to the last 16 of the World Cup after closing out a 2-1 win over Canada at the Al Thumama Stadium to finish top of Group F.
Belgium bowed out of the World Cup after falling short in a goalless draw with Croatia in their final group game at the Ahmad Bin Ali Stadium.
Declan Rice believes England's "world-class" squad deserve to be feared at the World Cup.
Connor Roberts says Wales can use their painful World Cup experience in Qatar to qualify from the group stage at the tournament one day.