In 1919, Pearce sought an opportunity in baseball and joined the
Rockford Rox of the Three-I League under the pseudonym "Dwyer" to preserve his college athletic eligibility. Despite receiving interest from the Chicago Cubs, who invited him to spring training in 1920, Pearce never played for the team. He returned to Rockford and played 129 games for the Rox. He then joined
George Halas's Staley baseball team, which led to his entry into professional football. Pearce re-enrolled at the University of Pennsylvania in the fall of 1919 and played as a halfback for the varsity football team. However, just before Thanksgiving, he was declared ineligible after it was revealed he had been paid for playing baseball earlier that year. This led to his ban from future collegiate sports, causing Pearce to
drop out of Penn. ==Professional football career==