Hull City's head of operations Adam Pearson will try to sell two more players after Jimmy Bullard's proposed loan switch to Celtic fell through.
The Tigers had hoped Bullard's loan move would cut £2million from their wage bill but the 31-year-old will now remain at the KC Stadium on his £45,000-a-week salary.
Pearson told the Hull Daily Mail: "Jimmy's always been included in the playing budget, but his return does bring one or two new financial challenges in terms of getting the wage bill down to our £15million target.
"Had Jimmy moved it would have given us a bit of flexibility, but this emphasises the need to move another couple of players on."
City have already parted company with 15 players this summer including Geovanni, Stephen Hunt and George Boateng to cut their £38million wage bill down by almost a half.
Algerian forward Kamel Ghilas is expected to leave the club on a season-long loan arrangement soon while Daniel Cousin is unlikely to still be a City player when the new campaign begins in just over three weeks' time.