This is what i did to remove the big ass BIMBO from some of my other team shirts: Turn the shirt inside out, lie on a ironing board / flat surface. Put a towel on top Use an hot ass iron and iron the towel /shirt where the sponsor is. The whole point is to heat up the rubber-ish material that the sponsor is written with, then while still hot, start peeling it off. It takes a while, but slowly and surely you will get it all off. NOT RESPONSIBLE IF YOU ******** UP YOUR SHIRT. Disclamer: I haven't gotten Madrid shirt in a while, so i don't know if this applies. If the sponsor is written with a sharpie like a chola's eyebrows, or its stuck with the might of god; well your out of luck. Disclamer 2: I learned this the hard way. If you going to do it, make sure you do it with a brand new, out of the box / bag shirt. Reason is that if you do it with an old / used / washed shirt, the uncovered area will the discolored from the use / washing / while the area under the sponsor will not.