DE · New York Jets
John Hennessy
Age 71 · 191 cm (6'3") · 110 kg · Born Mar 12, 1955 · Michigan
NFL career
1977
debut year
1979
last season
3
seasons
—
jersey
College: Michigan
Other "Hennessy" players in NFL history
Different players, same surname — ordered by most recent.
Career badges
Retired
External profiles
Michigan alumni in the NFL
Other NFL players who attended Michigan.
Makari Paige
SAF · 2026 · Steelers
Colston Loveland
TE · 2025 · Bears
Donovan Edwards
RB · 2025 · Dolphins
Jordan Turner
LB · 2025 · Broncos
Josaiah Stewart
LB · 2025 · Rams
Josh Priebe
G · 2025 · Dolphins
Kalel Mullings
RB · 2025 · Titans
Kenneth Grant
DT · 2025 · Dolphins
Luke Newman
G · 2025 · Bears
Mason Graham
DT · 2025 · Browns
DE peers of the era
Other DEs who debuted within five seasons of John Hennessy.
Born on March 12
Jake Kupp
1941 · New Orleans Saints
Jim Tolbert
1944 · Los Angeles Chargers
Ken Johnson
1947 · Cincinnati Bengals
Mark Moseley
1948 · Cleveland Browns
Tommy Reamon
1952 · Kansas City Chiefs
Frank LeMaster
1952 · Philadelphia Eagles
Donnie Thomas
1953 · New England Patriots
Bill Matthews
1956 · New England Patriots