A big claim has been made about David Sullivan and Tim Steidten in a five star West Ham United transfer update. The clock is now well and truly ticking ahead of the closure of the January transfer window for West Ham. The Hammers have negotiated three transfer deals involving first team players thus far. High earner Thilo Kehrer was shipped out on loan to Monaco with easily achievable clauses to make the move permanent at around £10m in the summer. Conor Coventry was sold to Charlton for an undisclosed fee. And West Ham made their first signing of the window with the arrival of Kalvin Phillips…