A new 'yellow card' system will be trialled in professional cycling, as part of rule changes designed to promote safety in road races.
Cycling's governing body, the UCI, announced the rules on Wednesday evening. Alongside the yellow card system, there will be changes to the 3km rule - whereby riders affected by crashes or mechanicals in the closing kilometres are given the same finish time as those around them at the time of the incident - how time gaps are calculated on sprint stages, and potential restrictions on using race radios.
