As indicated by the Birmingham Mail, West Brom are confident that they have the facilities, medical science and staff who can revitalise Diaby and keep his notoriously poor injury record in check.
The 29-year-old French global has endured a nightmare time of it in recent seasons with his Gunners career ravaged by a run of bad injuries.
Any deal would be similar to Albion’s quest to sign Owen Hargreaves four years ago.
Hargreaves was a free agent at the age of 30 when Roy Hodgson and Dan Ashworth held talks with him only for the Canadian-born England global to then opt for a move to Manchester City.
The former Arsenal midfielder was released by the north London club at the end of last season after struggling to re-establish himself in the first team squad following a series of injuries.
Diaby made 180 Premier League appearances for the Gunners and scored 19 goals after joining from Auxerre.