Liverpool did a lot of things right against Manchester United but were undone by repeated attacks down their right flank, with Marcus Rashford, Romelu Lukaku and Juan Mata overloading that side of the pitch to create the two goals that eventually won the match 2-1.

One reason United had so much joy down that avenue was the struggles of Trent Alexander-Arnold. The young right back - valued at £7.2m by Transfermarkt - has enjoyed an impressive season but Saturday's match was a harsh lesson for the Scouser as Rashford was United's most potent threat.

For Liverpool's next match, against Watford, Jurgen Klopp has a decision to make. He has Joe Gomez in reserve, another young Englishman who has enjoyed an impressive campaign, and he is more defensively secure.

Obviously, the Hornets pose a different kind of threat to United, which will come into Klopp's thinking but it is important to also consider how Alexander-Arnold's confidence will have been affected by the first-half chasing he received from Rashford.

That's why we're asking you the question; who should the Reds start at right-back on Saturday?

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