What is Mark Gastineau's Net Worth? Mark Gastineau is a former professional football player who has a net worth of $200 thousand. Mark Gastineau played as a defensive end for the NFL's New York Jets from 1979 to 1988. A five-time Pro Bowler, he was also the first player ever to lead the NFL in sacks in consecutive seasons, doing so in 1983 and 1984. Gastineau is considered one of the greatest...