The bitterness between the clubs has escalated in the aftermath of last week's events, with the Baggies boss accused of unsportsmanlike behaviour
Stoke manager Mark Hughes' frustration at West Brom counterpart Tony Pulis has threatened to boil over after the latter phoned Ryan Shawcross to call him a "loser".
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There were bitter scenes in the aftermath of Stoke's 1-0 loss at West Brom last weekend, with the managers refusing to shake each other's hands at the final whistle.
The level of animosity has grown, however, after Hughes revealed Pulis left a message for Shawcross insulting the Potters captain.