Winger Burke has had a scan on a hamstring injury and will be assessed while boss Tony Pulis remained tight-lipped on Chadli's problem.
"Nacer is one of the ones who has still got a problem, we will have to have a look again later on this morning to see how he is," said Pulis.
"Oliver Burke is another one, there's three of them really we are a little bit concerned with."
Hal Robson-Kanu is available again after a ban and Gareth McAuley has recovered from a thigh injury, although Pulis admits they may decide against taking a risk on the veteran defender and keep him back for the League Cup third-round tie against Manchester City.
Meanwhile, Gareth Barry will equal Ryan Giggs' Premier League appearance record of 623 games if he features.
Provisional squad: Foster, Myhill, Nyom, Evans, Dawson, McAuley, Yuning, Hegazi, Gibbs, Brunt, Yacob, Morrison, Field, Livermore, McClean, Chadli, Barry, Rondon, Rodriguez, Burke, Robson-Kanu, Krychowiak.