Bolton have a major doubt over their captain Kevin Nolan ahead of Thursday's UEFA Cup last-16 clash with Sporting Lisbon at the Reebok Stadium.Nolan sustained a back injury in the 3-1 home defeat to Liverpool on Sunday, with Gary Megson describing him as "touch and go."

Megson is without four players for the first-leg tie with El-Hadji Diouf suspended, along with the ineligible Grzegorz Raziak, Gretar Steinsson and Tamir Cohen.

Bolton (from): Jaaskelainen, Samuel, Nolan, Meite, Stelios, Campo, Helguson, Gardner, Davies, Teymourian, Vaz Te, J O'Brien, Al Habsi, A O'Brien, Cahill, Taylor, Alonso, Guthrie.

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