Brentford have taken Sheffield United defender Ben Starosta on loan until the end of the year.
The 20-year-old joined The Bees on trial and featured in recent friendlies against Premier League sides Reading and Chelsea.
Starosta, who has yet to make a first-team appearance for The Blades, links up with Terry Butcher's side until the first week in January.
The young stopper has previously had a spell on loan at non-league club Tamworth during the 2005/06 season.
Starosta is Brentford boss Butcher's tenth signing of the summer as he prepares for the new League Two campaign.