Chelsea have reportedly accepted a bid of around £35million from Bayern for Hudson-Odoi and the 18-year-old forward is seriously considering the move after witnessing Jadon Sancho's meteoric rise in Germany.
"It's insane to have a market of 30 days in this moment of the season, because we play every three days, so we need rest", Sarri added.
The future of Alvaro Morata remains in the balance and the player's agent has arrived in London in order to find a resolution to his situation, with both the player and Chelsea looking to bring an end to his time at Stamford Bridge.
Chelsea, however, have not given up hope of changing Hudson-Odoi's mind, and Sarri - who picked the 18-year-old to start against Tottenham in the Carabao Cup semifinal first leg at Wembley on Tuesday - hit out at Bayern.
He told a press conference today: "As you know very well I am not in control of the transfer market".
Asked where he felt Chelsea needed reinforcements, Sarri said: "As you can understand, I cannot tell you where".
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"But I don't know anything about the market day by day or minute by minute". I think it is a great opportunity for him to do that'.
Chelsea have pressed the accelerator in the chase to sign on-loan Juventus striker Gonzalo Higuain and held talks with the striker's brother on Thursday evening.
"Me and Callum are close friends", he said.
He reiterated that Fabregas "needs to go" and suggested the Spaniard, whose expected move to Monaco has not been completed, is not in the right frame of mind to play against Newcastle on Saturday.
"At the moment Morata is here, so I think he has to think only to play".
Sarri said he was not aware of any approach to Willian, but added: "Of course [I don't want to lose him] because he is really very important".