Brendan Rodgers is hoping to find the formula to a settled back line over the coming weeks to help bolster Liverpool's defensive record.

The Reds have used several different permutations at the back so far this season due to injuries and changes in formation.

However, Rodgers is looking to strike the right rear-guard balance to give his side a level of consistency at the back.

"This is an important area of the team," said the boss. "It's something I need to look at in order to get that consistency.

"There has been lots of change and some of that has been down to me, knowing every game is an absolute cup final for us.

"If I feel I need to change it going into a game to get a result then I will do.

"But of course I also need to look at it from the coaching perspective as well. That little run in the team might breed the consistency even though we have had to change a number of positions."

Rodgers increased his defensive options over the summer with the arrivals of Kolo Toure, Mamadou Sakho and Tiago Ilori.

While Toure was selected against Hull City last time out, Sakho was named on the bench while Ilori is still awaiting his first-team debut.

Nonetheless, the boss insists the duo have big roles to play this season.

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"Ilori was always going to be one for the future, to develop, but Sakho was going to be one who came in and challenged and there's no real change to that," Rodgers said.

"He came in at a time when we went to a back three and did reasonably well. He's working very hard to come into the starting line-up.

"That's where we are at. He's a good player, an international, and if he is working well enough in training and the team is not doing so well, it could open up the door for him.

"The last couple of games we were disappointed with the goals at Everton and obviously we made mistakes at Hull.

"That has been the difficulty for us, getting that balance, the partnership that could cope with all types of strikers."

Explaining his decision to field a defensive pairing of Toure and Martin Skrtel at Hull, Rodgers continued: "I just felt we've struggled at times against big physical opponents and Toure has obviously coped well with that type of player.

"That was the idea with putting Toure in against Hull, and obviously Skrtel has been excellent since coming in. It was simply tactical.

"What do I look for in a centre-back? The first thing you have to do is defend.

"The first attribute isn't about the ball. It is to defend. When you can defend, you then look to build the game from there."

Meanwhile, Rodgers had words of praise for Jon Flanagan, who made his second successive start in the unfamiliar left-back role at the KC Stadium.

He said: "I thought Jon Flanagan was excellent at Hull. In all the negativity after the game I don't think he gave the ball away once.

"He was outstanding. He's played the last two games away from home, he's stood up to the challenge and made no mistakes, and that's what we want."