#4 Pedro Chirivella
Captain of Valencia's youth team, Pedro Chirivella signed professionally for Liverpool in the year 2013.
Since then, he has made just one appearance for Liverpool's first-team. There's potential in him, no doubt. But there's not been place for him in the squad yet. He has been of the loaning system for 2 years now and in 2017, he was loaned out to Dutch side, Willem II.
As a defensive-minded player, his attacking contributions are commendable. He scored 1 goal and assisted 3 more. The important metric to look at though is his passing accuracy which stood at 81.5% for the 2017-2018 season. Not too shabby a statistic.
The signings of Fabinho and Naby Keita early in the transfer window have drastically reduced his chances of breaking into the first-team this year again.
However, a long-term injury to either of them could mean a call-up for Pedro. Despite being small, he has the tenacity that's very much needed to compete in the Premier League.
Like an old-fashioned defender, he loves a challenge and seldom shies away from them. He's a greater passer of the ball and has the ability to hit the rare long ranger from well outside the box.
He has all the attributes that Klopp looks for in a defensive-minded player. All that he needs now is a slice of luck to come his way.