Brighton 'close' to third summer signing as Arsenal midfield target eyes move from Bundesliga
Grillitsch is a free agent after his contract at Hoffenheim expired this summer – the 26-year-old has also attracted interest from Arsenal.
The Austrian, who has 33 caps for his country, represented Hoffenheim for five seasons, having previously played for Werder Bremen.
Brighton continue to be active in the transfer market as Potter looks to improve on last season’s impressive ninth place finish.
So far, Paraguay international Julio Enciso signed for around £8.5m and attacker Simon Adingra – who was sent on loan to Union SG – joined from Norwegian side Nordsjaelland for £7m.