Wigan Athletic manager Roberto Martinez believes that the summer transfer window should come to an end before the start of the domestic season.
The Latics, who go up against Chelsea in their Premier League opener on Sunday, are currently dealing with the Blues over an ongoing saga involving Wigan forward Victor Moses.
"I don't like it, I have expressed many times that I don't agree with the transfer window going on while there are official games," said Martinez.
"I have always said that. I do feel there is a need for a transfer window, it is beneficial, but I don't think it helps when it is open when you are playing official games.
"It gives you uncertainty and I don't think that helps the game. The players are footballers but they are human beings."
Meanwhile, Wigan chairman Dave Whelan has insisted that the Champions League winners need to meet the club's asking price of £9m if they are to capture the Nigeria international.
