The Belgian centre-half, who is currently sidelined after undergoing surgery on his left ankle last month, says he is thrilled to have put pen to paper on a new deal, which is believed to run until 2015.
“I always had the intention to stay here,” he said. “I feel there is a big belief in me from the club, from the boss and from the fans and that is one of the reasons why I stayed.
“Arsenal is a fantastic club. We have great supporters, weâ€™re doing well financially and we are playing with some quality young players now and they will develop, which is very good for the future.â€
Arsenal manager ArsÃ¨ne Wenger added: “Our plan is always to sign top quality players and with Thomas extending his contract, we have done just that.
“Thomas is a special player, who has always made a huge contribution on the pitch and we are looking forward to him being a part of our future.”
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