Italian cyclist Gianni Moscon was on Monday suspended for six weeks by Team Sky for racially abusing Kevin Reza on the Tour of Romandie.
"Following a disciplinary meeting with Team Sky concerning an incident at the Tour of Romandie, Gianni Moscon has been given a formal written warning and suspended from racing for six weeks. He will also attend a diversity awareness course," the British team said in a statement.
"Gianni recognises that his behaviour was wrong and how seriously Team Sky take this kind of incident.
"He apologised to Kevin Reza after the stage and again to him and his team the following morning, and this apology was accepted."
Team Sky warned that "any repeat will result in termination of his contract".
The incident happened on Friday's third stage of the race in Payerne.