It comes after a number of high profile errors from the Brazilian.
David Luiz has agreed a new one-year contract with Arsenal.
The Premier League club have also signed Pablo Mari and Cedric Soares on permanent deals.
Midfielder Dani Ceballos has had his loan extended from Real Madrid until the end of the season.
However goalkeeper Bernd Leno is not expected to return to full training for another four to six weeks.
The German sustained a "moderate ligament sprain" to his right knee during Saturday's 2-1 Premier League defeat at Brighton.
✍️ One-year deal for @DavidLuiz_4
— Arsenal (@Arsenal) June 24, 2020
✍️ Long-term deal for @PabloMV5
✍️ Long-term deal for @OficialCedric
✍️ Loan extension for @DaniCeballos46
More info on the new deals 👇
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