Wednesday, February 18, 2009
watch Ipswich v Nottingham Forest live streaming
Walters missed the 1-1 Championship draw with Blackpool at the weekend with a stomach bug while fellow forward Lisbie picked up a back condition in the warm-up.
Physio Matt Byard told the club's official website: "Kevin tweaked his back and had to have treatment and we couldn't put him on. We will have another look at him but he is obviously a concern for us."
Magilton has come under heavy criticism after seeing Town slip to seven points off the top six and a win over Forest at Portman Road is vital to keep their flagging play-off challenge alive.
Argentinian winger Luciano Civelli made his debut at the weekend and should continue on the left while Ben Thatcher returned behind him in place of Pim Balkestein.
Midfielders Alan Quinn and David Norris are both available after missing the Blackpool draw through suspension and will be in contention but full-back Moritz Volz remains sidelined with his groin problem and Ivan Campo is also out with a torn calf muscle.