Arsenal have partnered with Pro Evo and in a clip for PES 2021 it appears Willian's move has been comfirmed.
The clip says "new signing" at the beginning and appears to show the 31-year-old Brazilian in Arsenal colours with "Willian" across the screen.
A PES 2021 watermark is visible in the bottom left corner.
Willian - who has been with the Blues for seven years - had been holding out for a three-year deal from former team-mate Frank Lampard.
He has reportedly been offered that by Gunners boss Mikel Arteta.