Diego Martinez is boxing’s golden boy. Undefeated. Arrogant. Famous. With championship belts, millions of followers, and a career everyone envies, he believes there’s nothing left for him to learn. Especially not from a woman. When his longtime coach is forced to retire, Diego’s manager hires a replacement he never saw coming—a young female trainer with a reputation that speaks louder than her age. Determined to prove she belongs in one of the most male-dominated sports in the world, she’s not about to let an overconfident champion stand in her way. He thinks she’s a mistake. She thinks his ego is. Thrown together before the biggest fight of Diego’s career, the two clash at every opportunity. Every training session becomes a battle, every conversation a challenge, and every victory comes with a price. But the closer they get, the harder it becomes to ignore the chemistry neither of them wants to admit exists. After all… The most dangerous fight isn’t always the one inside the ring.