He would become part of a family of six, which included a sister Bernice and brothers Vincent and Sam and would live in his hometown until roughly the age of seventeen.

Jannazzo may have taken the ninth with lefts to the face of Falco, though the tenth was even with both boxers too exhausted to land stiff blows.

[5] At 145 pounds, Jannazzo fought Jackie Davis twice on January 26, and February 16, in eight round points decisions at Ridgewood Grove in Brooklyn, losing the first, but winning the second.

In 1936, Azteca, Mexico City born, would take and hold the Mexican Welterweight title and fight in five separate decades in his native land.

[2] On May 4, 1936, Jannazzo, at 145 1/2, scored a small upset defeating top NYSE welterweight contender Billy Celebron at the St. Nicholas Arena in New York in a ten-round points decision.

On October 30, 1936, he fought an important fifteen-round draw with Ceferino Garcia before a crowd of 5640 at New York's Madison Square Garden.

On November 27, 1936, he faced the incomparable triple division champion Barney Ross before 8,484 spectators in a NYSAC, NBA, and Ring Magazine recognized World Welterweight Championship at Madison Square Garden, losing in a fifteen-round unanimous decision.

[12] Janazzo showed pluck lasting fifteen rounds with Ross, even scoring with hard right crosses in the seventh, eighth, and tenth, though the outcome of the bout was never strongly in doubt.

[2] On December 21, 1937, and January 25, 1938, he fought Jack Carroll and Dick Humphries in Sydney, Australia, losing both bouts in ten round points decisions.

Jannazzo was badly pummeled by Carroll's blows to both body and head, but never tired in the bout, and attempted to return counterpunches after each encounter.

[15] On October 15, 1938, he fought a fifteen-round draw with Gustav Eder, German Welterweight Champion, at Hanseaten Hall in Hamburg, Germany.

The decision was unpopular with the enthusiastic home crowd of 10,000, among whom may felt Jannazzo had shown more science in the boxing and landed the more telling blows.

He would become a boxer of some renown, taking the World Colored Middleweight Championship on October 16, 1942, against Charley Burley in New Orleans, Louisiana.

[2][22] On September 21, 1942, in a lead-up to his fight with Sugar Ray Robinson, Jannazzo defeated Portuguese born Freddie Cabral in a ten-round points decision at the Valley Arena, in Holyoke, Massachusetts.

On October 19, 1942, he lost to the great Sugar Ray Robinson for the first time at the arena in Philadelphia, Pennsylvania, in a ten-round unanimous decision.

Immediately after on December 1, 1942, he fought a return bout with Robinson at the Arena in Cleveland, Ohio, losing in an eighth round Technical Knockout.

[2] He defeated "Wild" Bill McDowell of Dallas on June 17, 1943, in a ten-round points decision at Moers Field in Richmond, Virginia.

[25] On March 14, 1946, he fought champion Sugar Ray Robinson for the last time in Baltimore, Maryland, losing in a ten-round unanimous decision before a somewhat disappointing crowd of 4100.

Robinson had returned to the ring after fourteen months in the army, but had no trouble dropping Jannazzo twice in the second with well placed lefts and rights to the head, before asking the referee to end the fight.

[28] Fighting at 155 pounds on June 5, 1946, he defeated Joe Governale in a ten-round split decision at McArthur Stadium in Brooklyn, New York.

Belloise scored a technical knockout in 2:20 of the third round, and his manager, Chris Dundee, announced Jannazzo's retirement after seventeen years in the ring.

Around 1991, shortly after he moved to Columbus, Ohio, his family placed him in a nursing home, due primarily to the progressive boxing induced dementia from which he was suffering.