MTK Global (Mack The Knife Global) was a boxing and mixed martial arts management and event promotions company founded by reputed Irish crime boss Daniel Kinahan and former professional boxer Matthew ‘Mack the Knife’ Macklin. Originally established in 2012 as Macklin’s Gym Marbella (MGM), the undertaking has attracted controversy due to its links to the Kinahan cartel and related allegations of money laundering, and MTK Global has announced it will close by the end of April 2022.