Hull City's 2-1 win at Derby last night moves them level on points with Championship leaders Cardiff.
Wolves won by the same score at Blackpool with Kevin Doyle, Kevin Foley and Stephen Ward starting.
Cardiff can regain an outright lead at the top with a win at Leicester later.
If they slip up, Crystal Palace would go to the summit with a victory over Huddersfield in the late game.
Middlesbrough also start the day with a chance of becoming the leaders, and they make the trip to Leeds.
The other team in the top six, Millwall, meet Barnsley.
Bottom side Peterborough host Bolton, while fellow strugglers Sheffield Wednesday take on Charlton, and Bristol City go to Ipswich.
Elsewhere, Birmingham battle Burnley, Blackburn go against Brighton, and Watford face Nottingham Forest.