West Bromwich Albion have signed Celta Vigo midfielder Okay Yokuslu on loan for the remainder of this season.
The 26-year-old is Albion's fourth signing of the window as they look to stave off relegation.
Speaking about the arrival of Yokuslu, Allardyce said: "It shows that we have been fortunate to get a player of his calibre.
"To get him on loan, with his quality, is really great for the hard work we have done behind the scenes."
