The phrase "opposing defenders" refers to the players on the opposing team whose main job is to stop or defend against the attacks or scoring attempts of the other team. Full definition
This will be a nightmare for opposing defenders and should hopefully help us unlock teams when they are sitting 10 men behind the ball. (justarsenal.com)
He will kick and push and fight his way to goal, and he certainly gets no favors from opposing defenders. (intothecalderon.com)
Watch how he's able to jump two or three times before opposing defenders can get off the ground once. (sbnation.com)