Fight-size Boxing Update: Canelo Reaction, 2300 Arena Boxing Card, Nicola Adams Gets Barbie Doll

Your boxing fight-size update:

- The boxing world was in an uproar over Canelo Alvarez's positive drug test for traces of clenbuterol, including former WBO welterweight champion Liam Smith, who lost his title to Alvarez in 2016. Below is his Twitter reaction to the news.

Max Holloway KO's Justin Gaethje In Buzzer Beater Throwdown Finish At UFC 300

- In a press release sent to Fightful, King's Promotions announced that the main event of their upcoming April 6 boxing card at the 2300 Arena in Philadelphia will be Brandon Robinson vs. Oscar Riojas. In the co-main event, former world title challenger Jose Gonzalez will take on Zac Ramsey.

- Former Olympic Gold Medalist Nicola Adams was honored by Mattel as part of International Women's Day and was given her very own Nicola Adams-styled Barbie Doll.

- Matchroom Boxing promoter Eddie Hearn announced it has signed 2016 Olympic Gold Medalist Daniyar Yeleussinov to a promotional deal.

- In other prospect signing news, MTK Global announced that it has signed a promotional deal with unbeaten Saudi Arabian lightweight Zuhayr Al Qahtani; Dmitriy Salita of Salita Promotions also announced the signing of undefeated Korean Ukrainian junior featherweight prospect Arnold Khegai.

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