A professional boxer since 2007, Knight challenged Ana María Torres for the WBC female super-flyweight World title on 29 August 2009 at Ciudad Deportiva, Mexicali, Mexico, losing out by unanimous decision.

[3] [4] Her next bid for a World title took place on 18 June 2011, when she faced WBO female bantamweight champion Kaliesha West at Sports Arena, Pico Rivera, California, USA.

[5] [6] Knight finally won a World title at the third attempt, picking up the IBF female flyweight belt by knocking out defending champion Arely Muciño in round two of their contest at Palenque de la Feria, Colima, Mexico, on 29 October 2011.

[9] [10] On 26 October 2013, Knight attempted to wrest the WBC female light-flyweight World crown from Ibeth Zamora Silva but lost the fight at Deportivo Agustín Ramos Millan, Toluca, Mexico, by unanimous decision.

[11] [12] In March 2024, it was revealed Knight had agreed to join the second season of boxing's first squad-based format, Team Combat League (TCL), competing for the Las Vegas Hustle.