Leeds United suffered a 3-0 home defeat to Blackburn Rovers at Elland Road in the Championship today.
Cook sat out this afternoon’s Championship clash against Rovers at Elland Road due to an ankle ligament problem.
The 18-year-old picked up the injury while on international duty with the England Under-19 squad.
In the absence of the midfielder, Leeds suffered a 3-0 defeat to Rovers, conceding all three goals in the second half.
Redfearn has now admitted that Cook’s presence would have helped the team and told West Yorkshire Sport after the game: “I thought that Cook was a big loss today. We lost his athleticism in front of the back four, and obviously his craft and his touch.”
Cook has been one of the best players for Leeds so far this season and is one of the best young midfielders in the Championship.
The youngster has created 36 chances in as many Championship appearances this campaign, while having a pass accuracy of 75% and a shot accuracy of 50%.
Leeds are currently 14th in the Championship table with 52 points from 40 matches.