Van Dijk’s disallowed goal proved exactly why Robertson remains key to set pieces

For all the talk about officiating at the Etihad, the moment that mattered most for us wasn’t just about what was taken away – it was about what it revealed.

If Andy Robertson’s involvement in Virgil van Dijk’s disallowed equaliser had been allowed to stand, it would have underlined the quiet brilliance of our vice-captain’s role in Liverpool’s attacking set-pieces this season.

The flag may have gone up, but the pattern was familiar.

Robertson positioned himself in front of Gianluigi Donnarumma...