Johnny Broaca's journey in Major League Baseball began when he joined the New York Yankees as a pitcher. Born in Lawrence, Massachusetts, Broaca attended Yale University, where he excelled in both academics and athletics. His talent on the mound caught the attention of professional scouts, leading to his entry into the major leagues.

Broaca's debut with the Yankees came in the mid-1930s, a period when the team was already a powerhouse in the American League. As a right-handed pitcher, he quickly demonstrated his abilities, contributing to the Yankees' strong pitching rotation. During his time with the team, Broaca played alongside legendary figures such as Lou Gehrig and Joe DiMaggio, which placed him in the midst of one of baseball's most storied franchises.

Throughout his tenure with the Yankees, Broaca's performance on the field was marked by a mix of promising outings and challenging games. His pitching style was characterized by a solid fastball and a reliable curveball, which he used to navigate through opposing lineups. Despite the fierce competition within the team and the league, Broaca managed to secure a spot in the Yankees' rotation, earning the trust of his managers and teammates.

One of the highlights of Broaca's career came during the 1936 season when he contributed to the Yankees' successful campaign, helping the team secure the American League pennant. His efforts on the mound were instrumental in the Yankees' journey to the World Series, where they ultimately emerged victorious against the New York Giants. This championship win added a significant achievement to Broaca's career, as he played a role in the Yankees' continued dominance in baseball during that era.

However, Broaca's time with the Yankees was not without its challenges. As the seasons progressed, he faced difficulties both on and off the field. Reports from the time suggest that Broaca experienced personal struggles, which affected his performance and consistency as a pitcher. These challenges eventually led to a decline in his playing time and effectiveness on the mound.

In 1937, Broaca's career took a turn when he was traded to the Cleveland Indians. His stint with the Indians provided him with a fresh start, but he struggled to recapture the form that had initially brought him success with the Yankees. Despite his efforts to regain his footing, Broaca's time in Cleveland was short-lived, and he eventually left the major leagues.

After his departure from professional baseball, Broaca's life took a different path. He stepped away from the public eye, and little is known about his activities following his baseball career. His time in the major leagues, though relatively brief, remains a part of the rich tapestry of baseball history during the 1930s.