Brendan Rodgers remains concerned with Liverpool's defense following their 1-0 loss at home to Aston Villa.

Liverpool arguably didn't win the Premier League last season despite a powerful offense because of their weakness in the back.

“It is still a problem,” said Rodgers. “We have to do better down the side of the pitch. We have to defend better, that’s where it starts. Just defend, don’t try and be clever, don’t try to play, just defend and don’t let them have the set-piece. Then, when the ball comes in the box, we lose the first duel. We were a bit unlucky with the ball bouncing off [Javier] Manquillo but we didn’t start well. They could have scored more from set-pieces. [Philippe] Senderos had a free header.”