Hector turned around to see what the hell was happening behind him, and intervened by pulling the attacker back. He choked the migrant out with a headlock that eventually knocked him out, but in the tussle, the migrant managed to crack him pretty hard in the ribs with the pipe, breaking one or two.
He helped Sawyer get back to his feet, but he's definitely not mentioning it and went back to the fight without more than a cursory "you good?"