Stoke City winger Liam Lawrence is convinced they can take advantage of Chelsea's soft centre this weekend.
The Potters winger, 27, said: "We will work on set-pieces over the next day or so and, hopefully, we can go there and get something.
"We will keep putting it in the box and testing them. We have a powerful side and work a lot on set-pieces. Some teams look at it and, although they are not scared, they are wary of us.
"Chelsea seem to be a bit weak on set-pieces. I saw them against Southend on Wednesday, who scored from a good set-piece. It was a bit surprising to see how they were marking. That Southend goal looked relatively easy when he went up for it.
"We'll work on that and see if we can score another."