Liverpool boss Jurgen Klopp has explained why he is reluctant to sign his former players.

Klopp has passed on Arsenal pair Pierre-Emerick Aubameyang and Henrikh Mkhitaryan since leaving Borussia Dortmund for Liverpool.

He explained: “If you have had players, you know more about them. You want to learn about other players. That's how it is.

“I knew quite early that he (Mkhitaryan) was going this way (to Manchester United). There was absolutely no reason for me to jump in there. That isn't how we work.

“We didn't look for players we had already worked with. If you do that, you know their good, their bad and you wonder whether you will do it again.

“It's not boring but you know everything about each other so how can you develop? Where is the next step? Where is the next push for development?

“We could have gone for a lot of players. But, first of all, you have to think: what do I need?"