According to reporter Sacha Tavolieri, Jackson used up Chelsea's only international loan quota, and Di Sasi had to stay in the team.
The reporter wrote: "Exclusive news: Diessi will continue to stay at Chelsea! Diessi had already agreed to join Monaco, although an agreement was reached with Bournemouth."
"Although there will be some progress this morning, since Jackson finally joined Bayern on loan, Chelsea's international loan quota has been exhausted, which has also ended the transfer tug-of-war in Diessi."