Out of bounds, goalie knocked over Blade (4)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

[k] EEPE [r] (goalie = short forms of “goalkeeper” in football), without the end letters (bounds), reversed (knocked over). For the surface, “The Blades” = nickname of Sheffield United Football Club. A blade used in the sport of fencing.