Walcott worry for Gunners

Barclays Premier League leaders Arsenal are sweating on the fitness of England Under-21 international Theo Walcott (thigh) ahead of the visit of Middlesbrough.

Winger Emmanuel Eboue is available again following a three-match domestic suspension, but Tomas Rosicky (hamstring) and Abou Diaby (calf) remain sidelined.

Fit-again defender Kolo Toure and striker Robin van Persie are pressing for a recall having come off the bench at Wigan but Eduardo is out for the remainder of the campaign with a broken leg.

Provisional squad: Almunia, Sagna, Toure, Gallas, Clichy, Eboue, Fabregas, Flamini, Hleb, van Persie, Adebayor, Lehmann, Song, J Hoyte, Senderos, Gilberto, Denilson, Bendtner.