Tomorrow's fixture will always have a special resonance for Grant, who followed Jose Mourinho into Stamford Bridge and who came within a penalty kick of bringing them their first Champions League title in 2008.
"It was an interesting time," he said. "The club had lots of money. There was much money spent at Portsmouth before I arrived, although it was difficult to live with the uncertainty over the club. At West Ham, though, the situation is different again."