Liam Cullen scores the Swansea equaliser to ensure Preston do not spoil Snoop Dogg's first appearance at Swansea City since he became a co-owner.
A dominant Southampton put five past QPR at St Mary's to aid their push towards the Championship play-off places.
Bayer Leverkusen will face either Arsenal or Bayern Munich in the last-16 of the Champions League after beating Olympiakos over two legs.
West Bromwich Albion's winless run in the Championship stretches to 10 games as they were held to a draw by Charlton.
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