Mowbray will be without Mustapha Carayol, with the striker facing four months out with a knee injury.
Leicester boss Nigel Pearson will be desperate to improve his side's away form with a result at the Riverside Stadium.
The Foxes have lost all three of their matches away from the King Power Stadium so far this season.
Leicester City: LWLWW
Middlesbrough: Steele, Hoyte, Amougou, Friend, Woodgate, Leadbitter, Thomson, McEachran, Emnes, Jutkiewicz, Zemmama
Leicester: Schmeichel, De Laet, Konchesky, Morgan, St Ledger, Drinkwater, Marshall, James, Knockaer, Vardy, Nugent
Sports Mole says 1-1