Bruno Guimaraes poses with Mikel Arteta (Arsenal.com)Bruno Guimaraes has signed for Arsenal from Newcastle, a big moment for both clubs this summer. It’s official: Arsenal have just announced their biggest signing of the summer so far, with Bruno Guimaraes arriving from Newcastle after a two week battle of talks. Meanwhile Bruno promised to give his best to the Gunners:“”I will give [the fans] my best, I promise,” he said. The £75m they’ve paid is a record for a player of Guimaraes’ age. There is bound to be major discontent in the North East, no matter who they end up signing.