Mulumbu played under Di Matteo when the current Chelsea manager was the boss at West Brom between 2009 and 2011.
The midfielder withdrew from an international friendly for DR Congo because of a tight hamstring, and admits he felt the problem during the Baggies’ win over Wigan this Saturday. However, he hopes to be fit enough for the Chelsea match.
He said to West Bromwich Albion’s official website: “I hope I will be fit. After Wigan I felt something in my hamstring and we didn’t want to take any risks with me going to the international and coming back tired or with an injury. It happened during the Wigan game but the gaffer had made all of his changes so I had to stay on.”
However, while he believes he owes a lot to Roberto Di Matteo, it does not stop him from wanting to win the fixture.
He said: “Robbie has done very well. He is still quite young but he drove the Chelsea team on. So all my praise goes to him, but I’m looking to beat him. I won’t be looking to shake any hands or be kind to people, I will be looking to get three points and maybe go fourth in the league. He has a strong team but let’s see what happens on Saturday. I’m quite confident.”
Steve Clarke has revealed that goalkeeper Ben Foster will miss Saturday’s game as he is still recuperating after a minor operation on his groin, but should be back training this Monday.