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Jurgen Klopp believes Liverpool's summer transfer business will give them the strength in depth required to compete on all fronts this season.

The Reds are on the brink of securing their fourth signing of the window after Alisson flew into Merseyside for his medical.

The Brazil international is set to become the most expensive goalkeeper in the world after the Reds agreed a £66.8million deal with Roma.

Klopp, who refused to be drawn on Liverpool's pursuit of the highly-rated shot-stopper, has already secured the services of Naby Keita, Fabinho and Xherdan Shaqiri.

Alisson is set to be the Reds' last major signing of the window with interest in Lyon's Nabil Fekir unlikely to be revived following the collapse of his £53million move to Anfield on medical grounds last month.

“I am not 100% sure but maybe it is the first year we don't sell a key player,” Klopp said.

“There was always a lot of change, but in both directions. Now it is more in one direction. That's clear.

“Big teams, successful teams, if you don’t buy it you have to build it. That means stay together, bring additions in and make the next step. Stay together, bring additions in, make the next step. That's how it is.

“The team and squad is in a really good moment. We had the situation where 12 players knew that we needed depth in the squad. They know it.

“It is not like they say ‘bring in another midfielder, why? We are all still here’. They know we need the quality and they know that if we win something here then we will win it with 25 players. That is exactly how we feel.

“I am really looking forward to the season. I know it will be long and hard and difficult and all that stuff, but if we are lucky with injuries a little bit and getting one or two penalties at least at Anfield then it should be okay.”

(Image: FILIPPO MONTEFORTE/AFP/Getty Images)

Liverpool take the next step in their pre-season schedule when they face Blackburn Rovers at Ewood Park on Thursday night.

With players coming back at different stages following their World Cup commitments, preparations for the new campaign are far from ideal, but Klopp has been content with what he's seen so far.

"There are 22 days to go so we are not close but we are in a very good position," he added.

"I love the pre-season but I really loved the good old pre-season when you had all players together and you can train from the first day, four different systems… stuff like that.

"In this moment we miss three or four offensive players. Roberto, Mo, Sadio and Shaq... it means an interesting challenge.

"Hendo's not in, Trent's not in, Simon is not in and Dejan will be the latest to come back. We are in a good position but we are not even close to how I want to play football.

"Pre-season is like this. You need to do whatever you do with a high intensity to train your body for a long season. That means you are tired for the next day but that's no problem.

(Image: Anthony Devlin/PA Wire)

"When you play the games you think “that should look different”. You reach different targets step-by-step. Today good in defence, next day good in creating chances, being good at finishing maybe comes the latest because you need to be fresh for that.

"In terms of squad planning, I am really fine. In terms of football, we are in a good way but not where we want to be.

"A lot will come once the other boys are back. We will be fine at the end. At the moment I am happy with the squad. Could something still happen? We will see."

Klopp admits there will be a number of exits later in the window when he off-loads those who are surplus to requirements.

"Of course we have to. We cannot go with 35 to 40 players. We need a lot of players but not 40," Klopp said.

"I really thought the idea of moving the transfer window was good but only if we do it altogether."