Santos coach Jorge Sampaoli has given his pay back to the Brazilian club until his players get paid.
The Argentine says the club should pay every worker on the same day.
Brazilian media say Santos has not paid its players since the beginning of February. Club executives pledged to solve the problem in early March, but that did not happen.
Sampaoli, a former coach of Argentina's national team, also criticised the club's executives.
After an impressive start to the season, Santos has failed to win its last three matches in the São Paulo state championship. The team lost to Botafogo 4-0 on Wednesday.