With his arm grabbed like that, it's going to be difficult to move out of the way completely. His foot accidentally slips as well, having caught the slippery fabric of the outfit he was given under it. He twists as best as he can to avoid being skewered by the knife, but he can't dodge completely and it grazes his side, cutting fabric and flesh.

"...!"

Damn it, he thinks, planting his feet firmly back on the ground again and grabbing Eliot's hand on his wrist with his own other hand, turning his body to swing the other man away from him, maybe hopefully into another Tribute or something else with enough force to get him to let go. He screwed up, and faster than he expected himself to.