Wales midfielder Andy King would welcome the expansion of the World Cup finals from 32 to 40 teams.
The sport's governing body Fifa is pondering a plan to expand the tournament from 2026, though a decision has been delayed.
Leicester's King, 27, believes it would improve Wales' chances of qualifying.
"I think we're up there now in being able to compete with the best but obviously an extra eight teams would give us a better chance," he said.
Wales ended a 57-year wait to qualify for the finals of a major tournament when they clinched a place in next summer's European Championship in France.
That followed the expansion of the tournament from 16 teams to 24 teams, and King thinks a similar expansion of the World Cup could improve the chances of European teams such as Wales.
"They did it for the Euros and we've qualified, albeit I think we would have qualified anyway even if they hadn't expanded the number of teams," he said.
"But if they could do it for the World Cup it would be brilliant.
"Qualifying for the World Cup is really tough with only one team from each group and the quality there is in and around Europe.
"But I think we're up there now in being able to compete with the best but obviously an extra eight teams would give us a better chance."
Wales have played in the World Cup finals only once, in 1958 when they were beaten in the quarter finals by Brazil.