'Not nice to hear' - were Trent jeers 'shocking' or 'understandable'?

[Nickie]

As Trent Alexander-Arnold is booed by a section of the Liverpool fans after appearing for the first time since announcing he is to leave in the summer, BBC Sport looks at the reaction.

More... (https://www.bbc.com/sport/football/articles/cp3n55ng3nro)