'On April 27, 1956 he retired as boxing's only undefeated heavyweight champ'
Rocky Marciano
APRIL: On April 27, 1956 he retired as boxings only undefeated heavyweight champ
On April 27, 1956 he retired as boxing's only undefeated heavyweight champ
On April 27, 1956 he retired as boxing's only undefeated heavyweight champ
APRIL
Rocky Marciano
APRIL