Portsmouth spent �3m on agents' fees during Harry Redknapp's time as manager, according to club chairman Milan Mandaric. Redknapp, who resigned on Wednesday, spent over �12m on 20 players.
"We have spent at least �3m on agents' fees in the past couple of years," Mandaric told the Daily Mail.
"I know Manchester United are spending a lot more money on some heavy-duty players, but this is Portsmouth we are talking about."
Mandaric admitted he will be disappointed if Redknapp makes a quick return to football management after saying he wanted a break from the game.
"He told me wanted to spend more time with his wife and their family, and I have to accept he's telling the truth," said Mandaric.
"If he ends up at Wolves or Southampton, I would be very disappointed with him, but right now I believe he needs some rest."