England coach Gareth Southgate was shocked by jeers for Jordan Henderson during their friendly win against Australia.
Southgate admits he was baffled by the boos for Henderson, who left Liverpool for Al-Ettifaq in the summer.
"He is a role model in the squad," said Southgate. "I don't understand it.
"How is [booing] going to help him or the team? He has got 79 caps for England - what he has delivered is exceptional.
"He has taken Jude Bellingham under his wing. He knitted things together on the field tonight in a team with not a lot of caps."