But they face competition for the combative defender from Cardiff City as their boss Lennie Lawrence already confirmed his interest in 30-year-old Gregan yesterday.
Gregan has only a year left on his contract at The Hawthorns and there has been no sign of any talks to discuss a new deal.
He cost Albion £2m when he moved to the club from Preston two years ago.
Gregan has only a year left on his contract at The Hawthorns and there has been no sign of any talks to discuss a new deal.
He cost Albion £2m when he moved to the club from Preston two years ago.