West Brom boosted their bid for automatic promotion as relegation-threatened Hull City and Middlesbrough both lost in Sunday's Championship action.
After table-topping Leeds United and in-form Brentford both won 24 hours earlier, the Baggies followed suit as they eventually overcame Hull 4-2 in an eventful encounter at the Hawthorns.
Twice West Brom took the lead only to concede, Mallik Wilks making it 2-2 early in the second half. However, Kamil Grosicki crucially edged the hosts back in front just over a minute later.
Grady Diangana wrapped up victory for Slaven Bilic's side, though they finished the game down to 10 men following the late dismissal of Ahmed Hegazi. Still, West Brom are once again a point behind Leeds, while they are five clear of third-place Brentford.
Hull remain outside the bottom three as fellow strugglers Middlesbrough were beaten at home, going down 1-0 to QPR.
Jordan Hugill grabbed the only goal of the contest just after the half-hour mark against a club where he spent the 2018-19 season on loan.
Meanwhile, Swansea City moved up to eighth – four points adrift of the final play-off berth occupied by rivals Cardiff City – courtesy of a 2-1 victory over Sheffield Wednesday.
Rhian Brewster, who is on loan from Liverpool, opened the scoring and Andre Ayew doubled the Swans' lead from the penalty spot. Atdhe Nuhiu did half the deficit, though his stoppage-time effort was no more than a consolation for the Owls.