Romaine Sawyers has completed his move to Brentford on free transfer from Walsall.
The attacking midfielder has agreed a four year deal with the Bees and takes part in the first day of pre-season training.
Sawyers started his career at West Bromwich Albion and spent time at Port Vale and Shrewsbury on loan.
He then joined Walsall on loan in 2013, which then became permanent and he worked with Dean Smith until the manager took over at Griffin Park and they have now linked up again in west London.
The head coach said: “Romaine is a player I know very well. He was one of the top players in League One last season. He has always shown potential, last season he moved in to a level above League One.
“I am really pleased we have signed him. For a player to get in the PFA Team of the Year and the top three as voted for by managers and supporters it shows the ability he has. Hopefully he will show that here.”
The deal to bring Sawyers to the club began as far back as January and co-director of football Phil Giles revealed that he was the club's main target.
He explained: "Romaine is a player that we've been watching for some time. When Dean joined the Club last year he was able to give a very good reference and so Romaine became an obvious target for us during the close season.
"Understandably there was lots of interest in Romaine and so I'm delighted that he has chosen to come to Brentford and look forward to working with him over the coming seasons."
Gillingham defender John Egan and Southend goalkeeper Dan Bentley are both undergoing medicals ahead of completing their moves to Griffin Park.
The Bees will owe the Gills and Shrimpers compensation as both are under the age of 24. If the two clubs can't agree a deal then it will go to tribunal.