Mohamed Salah made goals history on Saturday as Liverpool closed the gap on Manchester United in the race for second place in the Premier League with a comfortable 3-0 win against Bournemouth at Anfield.
Alexander-Arnold played the ball in behind the defence for the red-hot Egyptian who got on the end of the ball and looped his header over Begovic, to register his 30th Premier League goal of the season.
"It's completely normal that a boy in that situation wants to be top of the scoring list, the golden boot. When we lost the ball we were like lions, coming back with counter pressing, that obviously makes life uncomfortable for the other side", said Klopp, whose side have now scored 78 league goals this season.
"It's good, it's impressive - what a number, wow".
Klopp believes personal accolades for the 25-year-old should therefore translate into success for Liverpool this term. I'm not sure, I didn't count.
Newcastle hit back to beat Arsenal
The loan positive for Arsenal was Pierre-Emerick Aubameyang and Alexandre Lacazette combining well in their first start together. In the second half I feel that some players paid a little bit physically having played the game on Thursday night in Moscow.
Bournemouth are eighth on 38 points.
Pre-match tributes were held on the eve of the 29th anniversary of the Hillsborough disaster, before Liverpool began on the front foot and Salah toed Trent Alexander-Arnold's pass from deep just wide of the right-hand post.
Roberto Firmino should have added a third for Liverpool on 74 minutes only to see his effort cleared off the line. "It looked really mature, fluent and flexible again".
"It was good that we kept a clean sheet, with the little bit of luck you always need". The boys did fantastic. "The last 10-15 minutes was intense but it was the flawless manner to play this game".
With four Premier League games to come and a Champions League semi-final against his former team Roma, Salah will be hopeful of making the season even more special. "[It was] a really good game and a very important result".
Glenn is ESPN FC's Liverpool correspondent.