Two Championship heavyweights go head-to-head at Molineux on Saturday.
Sheffield Wednesday moved up to fifth with a 1-0 win over Queens Park Rangers.
Carlos Carvalhal takes his Wednesday side to the Championship leaders on Sunday lunchtime.
Current Sheffield Wednesday striker Gary Hooper and John Hartson both praised Celtic for their performance against Manchester City.
The winger arrived at Hillsborough in a club-record deal from Middlesbrough last week.
Celtic beat Israeli side Hapoel Be'er Sheva 5-2 on Wednesday evening.
Burton Albion picked up their first ever Championship points with a 3-1 victory over Sheffield Wednesday at the Pirelli Stadium.
Gary Hooper is looking to strike a partnership with new signing Steven Fletcher.
Chelsea's newest recruit spoke highly of Sheffield Wednesday's.
With the dust now settled on the Owls' best season in 16, we relive the best bits in pictures...