Photo courtesy Chelseafc.comGary Cahill has finally signed for Chelsea. He will wear the number 24 shirt. The most drawn out transfer saga of this window has finally been concluded as personal terms were agreed and a medical passed on Saturday morning. Speaking of the deal Cahill is quoted on the official Chelsea website saying:'Chelsea is a massive club, it is a club that looks to win trophies season in season out and it is a big opportunity for me to be a part of that. Opportunities like this you can't turn down.Great news for us as AVB continues to re-invent the Chelsea team into his mould. I wonder just how involved Cahill will be. Will b...