Former England striker Darius Vassell and injury-plagued defender Aleksander Tunchev head a list of six players not offered new deals by Leicester City.
Vassell, 31, was signed by former Foxes boss Sven-Goran Eriksson in 2010 but has also been hampered by injuries.
He only made 13 appearances during the season just ended after damaging knee ligaments last November.
Bulgaria international centre-half Tunchev, 30, played just 34 games in four years at Leicester.
He was brought to the club by current manager Nigel Pearson during his first spell in charge in July 2008, but has struggled with a succession of injuries.
Goalkeeper Chris Weale, 30, veteran striker Steve Howard, 36, midfielder Matt Oakley, 34, and striker Elliott Chamberlain, 20, are also leaving the King Power Stadium.
Weale looks set to join Yeovil Town, while veteran forward Howard and former skipper Oakley, are both looking for new clubs after four-and-a-half years at Leicester.
Youth-team product Chamberlain, 20, failed to play a first-team game for the Foxes.