No fresh problems for Coyle

Owen Coyle has no new injury problems as his Bolton side prepare to host Derby in the hope of bouncing back from an opening-day disappointment.

French striker David N'Gog was ruled out of Saturday's 2-0 defeat to Coyle's former employers Burnley and remains a doubt with a back problem. On-loan Arsenal forward Benik Afobe provides the remaining alternative to Kevin Davies and Marvin Sordell up-front and may push for a start. Matt Mills will hope for a debut at centre-back having been an unused substitute at Turf Moor, but must dislodge either Zat Knight or Tim Ream. "We need a big positive reaction to our second half performance on Saturday," Coyle told Bolton's official website. "We have to be ready for how tough and demanding the Championship is and ready for how hard teams work. "If we match that, then we believe we have enough quality to win these games. Derby are a good side with some terrific players, as they've shown in the opening games of the season."