STAGE 14 of the Tour de France was hit by sabotage after tacks were thrown on the road to cause 30 riders to suffer punctures.
Defending champion Cadel Evans was amongst those affected before the peloton opted to slow down and eventually cross the finish line as one.
Here, we look at six high-profile cases of sporting sabotage.
2012: Colours Boat Race
Cambridge claimed a controversial win over favourites Oxford after the race had to be stopped when protester Trenton Oldfield swam into the path of the boats as they headed for a tight finish. After a delay of half an hour Cambridge claimed victory, but not before a clash of boats broke the oar of an Oxford rower.
2004: Men's Olympic marathon
A former Irish priest leapt from the crowd and tackled Brazil's Vanderlei de Lima as he led the Olympic marathon in the closing stages. After a brief scuffle Lima resumed but lost a 40-second lead before finishing third. The intruder, who wore a beret and kilt, had been sentenced to two months jail after running onto the track during the Silverstone Grand Prix a year earlier.
1997: Australia World Cup qualifier
Australia were seemingly certain of qualifying for just their second World Cup when they outplayed Iran to lead the second leg of their World Cup qualifier at the MCG 2-0. But the match turned when a fan ran onto the field and pulled a net down and, after a long delay, Iran scored twice in the final 20 minutes to go through on away goals.
1975: England Ashes bid struck by vandalism
England were denied a chance to win back the Ashes after the final Test against Australia had to be called off because of vandalism on the Headingley wicket. Campaigners calling for the release of armed robber George Davis dug holes in the pitch and poured oil over one end of the wicket before daubing slogans, demanding the early release of Davis, over walls surrounding the ground. As a result, the final Test was abandoned.
1994: Nancy Kerrigan and Tonia Harding
American figure skater Tonia Harding was found guilty for her part in a plot to injure her main rival for a Winter Olympics place Nancy Kerrigan. Kerrigan was clubbed on the knee at the Olympic trials with Harding, and her husband, implicated in the unseemly incident. Kerrigan recovered to skate against Harding in Lillehammer, with their meeting dubbed 'The Battle of Wounded Knee II'.
1945: The Billy Goat Curse
The Chicago Cubs' long wait to reach the World Series has been blamed on the 'Billy Goat Curse' cast on them during American baseball's decider in 1945. William Sianis was denied entry to Wrigley Field for game four against the Detroit Tigers after he tried to smuggle his goat in. Sianis responded by casting his 'Billy Goat' curse which, after the Cubs promptly lost the series, has gained credence as they continue to wait to return to the World Series 67 years on.