Arsene Wenger has warned playing games without fans could “damage” football in the long term.
But Wenger, who now works for FIFA, believes it would be bad for the game if it goes on for months ahead.
Wenger, in an interview with beIN Sports, said: “Will it damage the show in the longer term without supporters? I’m convinced of that.”
“It can be a short term solution, not a long term one but it’s still the best way to decide the season.
“We cannot take medically take such a big gamble, we have to be safe. Nobody believes that by mid-July we will be completely safe.”
Bundesliga returned this weekend behind closed doors and German authorities have warned that crowds are unlikely to be back into stadiums this calendar year.
Premier League clubs are already braced for having to play next season behind closed doors and the Government have warned that supporters may not return until a vaccine is found.
Clubs are hoping a coronavirus vaccine may be available by February while England may not play in front of fans before the Euros in the summer of 2021 as the Championships have already been postponed by 12 months.
FIFA have brought in five substitutes for the rest of the season to help domestic leagues cope with fatigue and games being squeezed into a short space of time.
Wenger added: “At FIFA we proposed the five substitutes because the fixtures are very congested. I believe on the first game it’s very difficult to judge.
“I believe it is a good idea because some smaller teams could not play with the same players every three days so it allows them to use their best players.”