Alexander-Arnold knuckles down to defensive duty but will he stay?

Trent Alexander-Arnold reached the impressive tally of 100 'goal involvements' for Liverpool while also playing his part in a fourth clean sheet

Liverpool's Trent Alexander-Arnold challenges Bournemouth striker Justin Kluivert during the Premier League match at Anfield. Photo by Paul Ellis/ AFP 

Premier League: Liverpool 3 Bournemouth 0 

The immediate spotlight may have been on Luis Diaz's clinically taken double and the end of Darwin Nunez's goal drought but there was also a significant sub plot at Anfield.