Ringside Maisie(1941)

Young undefeated boxer Terry Dolan, who's been lying to his invalid mother about his career, confides to Maisie that he hates and is terrified by boxing and wants out. Not wanting to let down his best friend and manager Skeets Maguire, who has hopes of him becoming the next champion, he is reluctant to bring up the subject with him. Maisie convinces Terry to tell Skeets, whose unexpected reaction induces him to step into the ring again.