West Bromwich Albion's record transfer signing is Grady Diangana, who joined from West Ham United for £18m in September 2020. Their record sale is Salomón Rondón's move to Chinese Super League club Dalian Professional for £15.8m in 2019 — the same player who had set the club's incoming record five years earlier, bookending both ends of a single era of West Brom's transfer history.
Rondón In, Rondón Out, Diangana Above Both
Salomón Rondón's £12m arrival from Zenit St Petersburg in August 2015 set West Brom's incoming record, breaking the £10m paid for Brown Ideye from Dynamo Kyiv the year before. Rondón scored 28 goals across three seasons before his £15.8m move to Dalian Professional in 2019 set the club's outgoing record too, meaning the same player held both club records simultaneously for over a year. Grady Diangana's £18m arrival from West Ham United in September 2020, signed shortly after relegation from the Premier League, then broke Rondón's incoming record, though the transfer never repeated Rondón's on-field impact.
Relegation Money, Spent Immediately
The Diangana transfer is a specific case study in how relegated clubs sometimes spend parachute payments: committed within months of dropping out of the Premier League, on a player who had barely established himself at his previous club. It remains West Brom's record signing years later, a sign of how rarely the club has matched that outlay since.
Salomón Rondón set West Brom's incoming transfer record in 2015 and their outgoing record in 2019, the only player in this dataset to hold both records for the same club at once.
Diangana's £18m fee sits above the record signings of Second City rivals Birmingham City, whose own record, Jay Stansfield's £15m, arrived four years later.
