This also happened yesterday, after the official announcement of the arrival George Russell in Mercedes and the extension of contracts Pierre Gaslya in Yuki Tsunoda at the AlphaTauri team. The Russian published a rather mysterious message.
Na Instagram Mazepin posted black square, and inserted text inside # NM99 :). NM is obviously related to its own name, and the number 99 is the start number by Antonio Giovinazzi in Formula 1. He seems to be a team racer Haas winks at departure of the Italiansto be able to take his number 99. Anything mazepin by this he means it is a meaningful message. If Giovinazzi actually left Formula 1, si mazepin cannot immediately assign this number to 99.
According to the rules FIA, the number can only be used or picked up if the racer at least two years was not in Formula 1. However, there are rumors that he could Giovinazzi left at the end of the year Alfa Romeo increasingly concrete, and the team has yet to announce who will be racing alongside in 2022 Valtteri Bottas. To the best of my knowledge, it could be Alex Albon.