Videos of Brown running routes in catching drills with Wilson circulated Wednesday on social media, and the wide receiver later shared a video of the workout on Instagram. Seahawks backup signal-caller Geno Smith also participated.
"Who would like to see this on Sundays?" Brown wrote in his post caption. "That was fun!"
The Seahawks have reportedly had internal discussions about the possibility of signing Brown. Seattle is expected to add another starting-caliber wide receiver to its roster before the regular season.
The NFL is still investigating allegations of sexual assault and sexual misconduct brought against Brown by his former personal trainer.
Brown, 31, last played in September in his only NFL appearance of the 2019 season. He received two years probation in June after pleading no contest to a battery charge stemming from a January altercation with a moving-truck driver.