Manchester City boss Pep Guardiola believes the summer transfer window runs too long.
Guardiola is upset by the length of the transfer window and called on UEFA to change timescales and shut the window before the season starts.
"Unfortunately the market finishes on August 31st. I think that's a huge mistake from UEFA," Guardiola said.
"I think the market should finish when we start the season, it's too long, too large. We are playing here with guys who maybe will not continue, or with players who are coming but are not here.
"We are playing in a situation where we don't know exactly what is going to happen for the rest of the season, so we miss time. For all the managers.
"Hopefully in the future UEFA can think about that and the deadline will be the day we start the competition."