Sheffield United have paid an undisclosed fee for Nottingham Forest midfielder Ben Osborn.
Osborn, 24, has signed a three-year contract at Bramall Lane.
He came through Forest's youth set-up and, after making his debut in 2014, played 230 games for the Championship club.
Blades boss Chris Wilder said: "He's been a fantastic player for Forest in the Championship and I know for certain that two or three clubs in January were sniffing around to take him."
