FIFA says several players' representative groups and the sport's governing body have reached a consensus on the need for a period of rest of 72 hours between matches, and agreed that players should have a minimum of 21 days of holidays at the end of each season.
It was unclear, though, whether the consensus would lead to a binding agreement since FIFPRO, the sport's global players' union, did not take part in the discussions.
FIFA did not immediately say which groups attended the talks on the eve of Sunday's Club World Cup final between PSG and Chelsea, mentioning "representatives of several player unions from around the world."
The tournament was held during the European offseason and has faced criticism from unions, as an increased focus on player welfare has been leading to calls for mandatory rest periods and a greater emphasis on player safety during matches.
Days before the start of the month-long Club World Cup, soccer chiefs faced renewed calls to safeguard players over growing fears of injuries and burnout. Last month, France's union of professional soccer players launched a scathing attack on the competition, saying it is "urgent to stop this massacre" amid ongoing concerns about extreme player workloads.