English referees Howard Webb and Martin Atkinson will be in charge for Fiorentina-Juventus and Napoli-Porto on Thursday.
The Viola host the Bianconeri in the second leg of their Europa League Last 16 tie, going into the match with a crucial away goal, having drawn 1-1 last week in Turin.
And Webb has been revealed as the man in charge for what will, undoubtedly, be a fiery clash.
The Partenopei meanwhile, will welcome the Portuguese side to Naples, looking to overturn a 1-0 deficit from their first encounter.
Premier League official Atkinson has been given the honour of being the man in the middle for that clash.
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