Bridcutt originally joined Leeds on an emergency loan deal in the final week of November and was scheduled to return to the Black Cats at the weekend.
The 26-year-old defensive midfielder will now stay at the Championship club until the summer, as announced on the Whites’ official website today.
It is great news for Leeds fans that Bridcutt will remain at Elland Road for the rest of the season.
The Scotland international midfielder has established himself as a key player for Steve Evans’s side in recent weeks and will be important for the West Yorkshire outfit as the season progresses.
In eight Championship appearances for Leeds so far this season, Bridcutt has created four chances, has a pass accuracy of 82%, has won 10 headers, four dribbles and 14 tackles.
The Whites are 13th in the Championship table at the moment with 32 points from 25 matches, nine points behind Ipswich Town, who are currently sixth and occupy the final playoff spot.