His Diamond of Convenience (Harlequin Presents Series #3324)

Dmitri Markin meets his match! 

Twelve years ago, Victoria Calder made a mistake that cost her father his business. Now she finally has a chance to atone. And if that means going toe-to-toe with the arresting Dmitri Markin she's prepared to step into the ring…and put his on her finger! 

Dmitri—former martial arts fighter, present-day pleasure seeker—is a man who likes to win. The beautiful Ms. Calder might have initially shocked him with her proposition, but there's more than one advantage to the deal she's proposing… If this dedicated bachelor is going to surrender to marriage it certainly won't be in name only!