The two had a coming together during England's demolition of Lithuania when Morrison, who won the man of the match with a brace of goals and all round excellent performance, appeared to grab Zaha after the pair had exchanged words.
The end of the game saw them shake hands and there is said to be no continuing ill feeling between them but Gareth Southgate, the new under-21 manager, admitted that he faces a challenge to ensure there is no repeat of the incident from any of his players.
"It's my job to bring them together as a group, which is going to be a test. We spoke about being a team before the game. We know the potential of the group of individuals.
"The key now is how we come together as a team and that will take time because there is a lot of focus on individuals. Sometimes there is pressure on individuals and one or two of those had a point to prove and did that very well."