Yohan Benalouane, who has deputised for the Foxes captain during his month-long absence due to a nerve problem in his back, retains his spot in the side with Robert Huth suspended.
Andy King, who came off with injury during Leicester's 2-2 draw with Crystal Palace on Saturday, returned to training and is on the bench.
Atletico welcome back striker Kevin Gameiro, who missed the first leg with hamstring problems, to the squad but are without midfielder Tiago, who returned from injury as a late substitute in Saturday's 3-0 Liga win over Osasuna but has been left out.
Atletico's Croatia defender Sime Vrsaljko and Argentina midfielder Augusto Fernandez are also missing through injury.
Read the full article on eurosport.co.uk: Morgan returns as Leicester chase history