Defender Kolo Toure, Arsenal's last 'invincible', hailed the great Manchester City project he was joining on Thursday. "We all know that I was the last one in the 'invincible' team and that I was expecting to leave Arsenal," the 28-year-old told a news conference. "Manchester City have really changed, they have a really good team and they want to do something. The positives are really big and I want to be part of it," he added. Toure, who was part of Arsenal's 2004 title-winning side dubbed 'the invincibles' after ending the season unbeaten, completed a reported 14 million pound move to Premier League rivals City on Wednesday. "I am really, really delighted to be at this football club because the future is big and it is a big challenge for me as well." The Ivorian international is City's first major defensive signing after a close-season spent compiling an impressive multi-million pound forward line including Toure's ex-Arsenal team mate Emmanuel Adebayor. Toure was reported to have had a transfer request rejected by Arsenal last season and the centre-back said he knew of City's interest then. "In January there was some talk about coming here.. this is from six months ago and that is really important," Toure, who has signed a four-year deal, said. "The team want to progress, the club want to progress and everything the club do is to make sure we are going to play at the top of the league." Hours before the press conference City, who have failed in their efforts to sign Chelsea and England captain John Terry, had a second bid of 18 million pounds for Everton defender Joloen Lescott rejected. "We make no secret of the fact that we want to strengthen the team," manager Mark Hughes told the news conference. He added: "Obviously there is still quite a way to go until the (transfer) window actually closes so we will look at all opportunities and see what we can bring."