During this period, Tyson's problems outside boxing were also starting to emerge. His marriage to Robin Givens was heading for divorce, and his future contract was being fought over by Don King and Bill Cayton. In late 1988, Tyson fired trainer Kevin Rooney. Without Rooney, Tyson's skills quickly deteriorated and he became more prone to looking for the one-punch knockout, rather than using the combinations that brought him to stardom. He also began to head-hunt, neglecting to attack the opponent's body first. In addition, he lost his defensive skills and began to barrel straight in toward the opponent, neglecting to jab and slip his way in. In 1989, Tyson had only two fights amid personal turmoil. He faced the popular British boxer Frank Bruno in February in a fight where Bruno managed to stun Tyson at the end of the 1st round, although Tyson went on to knock out Bruno in the fifth round. Tyson then knocked out Carl "The Truth" Williams in one round in July. By 1990, Tyson seemed to have lost direction, and his personal life and training habits were in disarray. In a fight on February 11, 1990, he lost the undisputed championship to Buster Douglas in Tokyo. Tyson was a huge betting favourite, but Douglas (priced at 42/1) was at an emotional peak after losing his mother to a stroke 23 days prior to the fight, and fought the fight of his life. Tyson failed to find a way past Douglas's quick jab that had a 12-inch (30 cm) reach advantage over his own.