By Dan Ambrose: Trainer Teofimo Lopez Sr is upset with what he claims were “dirty” tactics by Vasily Lomachenko last Saturday night with him head-butting his son Teofimo Lopez in their fight in ‘The Bubble’ at the MGM Grand in Las Vegas, Nevada. The 23-year-old Teofimo (16-0, 12 KOs) won the fight by a 12 […]