The fastest man on the planet has one thing on his mind, and it's not romance. Usain Bolt has broken up with his girlfriend in order to focus on the Olympics, reports the Sun. "He will have plenty of time for relationships," says its source. "At the moment, he's concentrating on his running career and doesn't want anything to distract from that." Bolt was introduced to fashion designer Lubica Slovak, 28, last year by a mutual friend, the New York Post reports.