Sebastian Larsson: 'Sunderland must improve'

Sebastian Larsson has warned his Sunderland teammates that they must improve ahead of the new Premier League season.

Sunderland have suffered defeats in three of their four pre-season games, and Larsson has demanded that the team must improve quickly.

After the defeat to Helsingborgs at the weekend, Larsson said: "It was a very poor performance. We were well below-par.

"We know that we need to get at least another 20 to 30 levels up before we are ready to compete in the Premier League."

Sunderland complete their pre-season schedule with matches against Derby County and Leicester City.