About 20 Jets players were involved in a sideline brawl during practice at training camp after running back Joe McKnight and safety D’Anton Lynn tangled after a play.

Lynn, son of Jets running backs coach Anthony Lynn, shoved McKnight out of bounds after a screen pass Monday. McKnight fired the football at Lynn — and the two got into it, with McKnight charging Lynn and throwing a punch.

Players ran over and a pileup ensued, with players rolling through advertisement placards and into an area where reporters where standing — a few feet in front of a barricade where fans sit.

Coach Rex Ryan, along with several players, ran over to break up the melee by pulling players off the pile. It lasted about a minute.

(Copyright 2012 by The Associated Press.  All Rights Reserved.)