Will Buckley joined the Owls on a season-long loan from Sunderland in August 2016.
The 26-year-old began his career at Rochdale, rising through the youth system at Spotland before making his senior bow in February 2008.
Buckley scored 13 goals from 42 appearances for the League Two outfit and his impressive form earned him a move to the Championship with Watford in January 2010.
After spending 18 months at Vicarage Road, making 39 Championship appearances and chipping in with five goals, Buckley was back on the move and joined Brighton in summer 2011, who had been promoted as champions from League 1 the previous season.
During the midfielder’s three-year spell on the South Coast, where Buckley scored 19 goals in 64 league starts for Brighton, he moved to the Premier League with Sunderland for a reported fee in the region of £2.5m.
Buckley has made 24 appearances for the Black Cats in all competitions, during which time he has enjoyed loan spells with Leeds and Birmingham.
The winger made his debut for the club in the 2-1 EFL Cup defeat against Cambridge.