Trailer: Bare Knuckle Fighting Championship 4

'Bare Knuckle Fighting Championship 4: USA vs Mexico' was a bare-knuckle fighting event held by Bare Knuckle Fighting Championship on February 2, 2019 at the Beto Ávila Stadium in Cancun, Mexico. This was the first international bare-knuckle boxing event by Bare Knuckle Fighting Championship (BKFC).