Bruno Guimaraes is the latest player to join Arsenal after the Gunners completed his move from Tottenham, and the Brazilian will make them significantly better. He’s a very good player. To show he’s top class, I think he’s got to prove it now at Arsenal.’ Guimaraes has a point to proveHamann’s comments place the pressure on Guimaraes to demonstrate his quality after joining Arsenal. Although he recognises the Brazilian as a very good player, he believes the midfielder must prove himself before receiving a top-class label.