Klopp sweating over Alexander-Arnold's latest knee injury

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Jurgen Klopp is sweating on Trent Alexander-Arnold's fitness after the Liverpool defender was injured as the Reds regained top spot in the Premier League with a 3-1 win against Burnley on Saturday.

Alexander-Arnold was forced off at half-time with a knee injury after setting a new Premier League record of 58 assists by a defender with his corner for Diogo Jota's opener.

Now Klopp is waiting to discover how long he will be without the 25-year-old England right-back.

"His knee again? Yes, it felt like that. He got it stuck in the grass and we will see. We have to assess it," he said.

"Same area in the knee. Nothing really bad, but he felt it again and we have to see.

"Trent said 'it's fine' but it's not fine (because) he feels it so we had to be careful and took him off and that's a double problem if you want: Trent is off and the other is we had no other right-backs available."

'The wild west'

It was a hard-fought success rather than an eye-catching performance, with Liverpool's flu and injury-hit side dragging up just enough quality to dispatch second-bottom Burnley.

Referee Tim Robinson booked five players while Klopp and Burnley boss Vincent Kompany were also shown yellow cards during a tetchy game.

That got Klopp's attention after reports on Friday that football's lawmakers IFAB are set to trial sin-bins and blue cards.

Under the plans, players would get blue cards for dissent and tactical fouls and spend 10 minutes off the pitch.

"Imagine in this game and the referee has a blue card available? It would have been the wild west. There were so many yellow cards today," Klopp said.

"I had no clue why Vincent Kompany got it. I lost it in that situation so fine, give me a yellow card. As long as I don't get a blue one and have to sit somewhere for 10 minutes!"