Midfielder Johann Berg Gudmundsson has signed a new four-year deal with Charlton Athletic.

The 24-year-old Iceland international joined the Addicks from Dutch side AZ Alkmaar last summer and went on to score 11 goals in 44 games in 2014-15.

Charlton boss Guy Luzon said: “Everyone knows Johann is a player with a lot of quality. He had just one year left on his contract so I’m very happy he has committed his long-term future to us.”

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Gudmundsson, runner-up in the Player Of The Year competition, told the club’s website: “We want to build a squad for the future and I am one part of that. It is really nice for all of the squad to know that players are sticking around and that we are getting some new signings as well.

“I want to do better than I did last season; I want to score more goals and get more assists. I have a target in mind but I won’t be telling anyone. I did well last year but as a footballer you always want to do better and I’m no different.”