Liverpool boss Brendan Rodgers hailed Emre Can's performance in victory over Swansea City.
The youngster was played at the back on the night.
"The idea tonight was that we had the flexibility to flip the system," explained the Northern Irishman. "We had two full-backs who were attacking full-backs.
"If we had wanted to drop them two in and push [Can] into midfield, we could have done that. With him in that controlling role, it would have made our shape into a back four.
"It's very important that we have players who are confident on the ball. When I watched Emre last year, one of the games that I travelled to, in Hamburg, he was playing as a centre-half in a 4-2-3-1 formation.
"You see his presence - he's got size and he's got a good leap. He's quick and strong, so he can play anywhere on the field. He's played at left-back, he plays in centre midfield. The only two positions that he has not played in when I've seen him was at centre-forward and in goal.
"He's a wonderful player and at 20 years of age he's got a big future ahead. He's a player who is adapting into a way of working over in this country.
"It's been a big move for him. In training over the last three or four weeks, he has stepped up to a new level. You can see that in his performances since he has come in."