Liverpool v Real Madrid: Will Trent Alexander-Arnold show what Reds are missing on return?

Warnock said: “There is a great player in Conor Bradley, but he needs to stay fit and get a run of games to build up a relationship with Salah. These things can take time, even with the best players.

“Trent leaving has had an impact on Salah. Their partnership, if not exactly unnoticed, was almost taken as read. Yes, they are world-class individuals, but it was also a partnership.

“They really complemented each other. Trent could go inside, draw people towards him, which freed up more space for Salah. And when Salah drove at people he had the ability to feed Trent because teams were backing off.”

Alexander-Arnold’s comfort in possession with his fellow defenders, plus the ability to move into midfield, means his presence is also sorely missed elsewhere.

Warnock said: “I think Ibrahima Konate probably misses him as well. He knew he could give Trent the ball under pressure. I think it is having an impact on the right-hand side of the pitch, both in defence and attack.

“Liverpool also created a box system in the centre of midfield, which they did so well, when Trent was in the side.

“There was a lot of praise given to Alexis Mac Allister, Ryan Gravenberch and Dominik Szoboszlai, but Trent was a big part of that as well. Losing that extra body in the midfield area, when he was in there, is also missed because opponents were drawn to him, fearful of what he could create.”

Jeremie Frimpong, signed in a £29m deal from Bayer Leverkusen to compete with Bradley for the place vacated by Alexander-Arnold, has had his Anfield start curtailed by hamstring injuries.

Warnock said: “The biggest issue with Frimpong is not only injuries, but what is his best position? At Bayer Leverkusen he spent a lot of time as a right wing-back.”