Luke Moore put Swansea 1-0 ahead with a goal at 33minutes, before Romelu Lukaku equalised for West Brom six minutes later.
West Brom 1 - 1 Swansea going into the second half.
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Parents in Wales are urged to be aware of the potential fire risks associated with children's fancy dress costumes this Halloween.
There have been several theories after video footage emerged apparently showing a dramatic fireball falling from the sky over Penarth Pier.
Sam Warburton will miss Friday night's Challenge Cup clash with Pau in Cardiff due to neck stiffness.