Veterans Barry Hayles, Bruno Ngotty, Paul Henderson, Patrick Kisnorbo and Marc Edworthy were released at the end of their contracts.
The Foxes further added to their squad with the captures of goalkeeper Chris Weale, defender Robbie Neilson and midfielders Richie Wellens and Dany N'Guessan.
However, the forward line remained unreinforced until 19-year-old Martyn Waghorn arrived on loan from Sunderland just before the opening game against Swansea City.
Joe Mattock, part of the England squad for the European U-19 Championships, handed in a transfer request just 48 hours before the first match of the season.
Prior to the 2009–10 season, their record at this level was: Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.