8. Clouded judgement
In 2010, Carl Froch travelled to Denmark to defend his WBC world super-middleweight title against Mikkel Kessler. However, his travels were disrupted when a volcanic ash cloud grounded flights for some time, meaning Froch’s arrival in Denmark was much later than planned. After losing a unanimous decision to Kessler, Froch claimed that the effects of the delays were influential in the fight, as well as stating the result was gifted to Kessler in his home country. To his credit, Froch avenged the loss to Kessler three years later.