The Foxes failed with at least one bid to sign Keane while he was at Burnley and ended up missing out altogether as the defender joined Everton in a £30million deal last summer.
Despite being a revelation for the Clarets and forcing his way into the England squad, Keane has struggled to reproduce that form with Everton, leading to reports Sam Allardyce could look to cash in.
Keane still has plenty of time on his side and his career at Everton may not be over just yet, but reports are suggesting a number of Premier League rivals are keen to do a deal.
Leicester could come back in, especially if reports suggesting that Manchester United will make an attempt to sign Maguire in the summer, turn out to be true.
The Reds could offer £50million for Maguire and Keane would be seen as the ideal replacement should they decide to cash in.
Uwe Rosler was sacked by Fleetwood following a 3-0 reverse at Doncaster which condemned Town to a seventh straight defeat in all competitions.
Cambridge interim head coach Joe Dunne was pleased with how his side adapted to beat Grimsby 3-1.