After secretly accepting payment for playing in 1892, who is considered the first athlete to play American football professionally?

Ben "Sport" Donnelly is considered the second professional paid football player behind William Heffelfinger. Having been secretly paid to play in 1892, football player and coach William Heffelfinger was the first American professional football player.

Asked by Rachel Bortles · Last updated 5 years ago · 588 views · SOURCE