Liverpool advanced to the fourth round of the FA Cup with a 2-0 victory at Arsenal on Sunday.
The match had heightened importance given the teams' season-long battle at the top of the Premier League table, although the Gunners have fallen behind the Reds as well as Manchester City and Aston Villa amid a recent spell of poor results.
Things did not get better for the North London side on Sunday at Emirates Stadium as Arsenal squandered a blistering first half against a depleted Liverpool side that weathered the early storm and scored twice late on to secure the result.
For Trent Alexander-Arnold, who on Sunday was wearing the captain's armband for Liverpool, the result is a massive one — albeit one that required a different approach in the second half.
"It's huge," Alexander-Arnold told the BBC. "We've got a lot of players missing today with the lads on internationals and Virg [van Dijk] not in the squad. We dug deep with two late goals.
"We changed things around at half-time and we came out and played football, created our chances. The change of system made an impact for us."
As for what the Reds changed at half-time, Alexander-Arnold explained that his side simply went back to the way they prefer to play rather than allowing Arsenal to dictate the match.
"At times in the first half we were a bit naïve playing out from the back," he said. "We stuck with how we play. We have our identity and used the speed of Darwin [Nunez] and Lucho [Luis Diaz]. Darwin went out wide and used his speed against their full-back."