Great Britain’s 200m world champion Dina Asher-Smith says she will support the Athletics Association, an athletes’ union formed in response to changes to the Diamond League programme.
American two-time Olympic triple jump champion Christian Taylor launched the body to “fight for athletes’ rights”.
“You know you always have my support! Let’s do this,” tweeted Asher-Smith.
The 200m and triple jump were two of four events cut from the regular 2020 Diamond League programme.
The 3,000m steeplechase and 200m will still feature at 10 of 15 Diamond meetings, while two will stage the discus and triple jump events.
None of the four will be included in the Diamond League final in Zurich in September.