The former West Ham boss has been discussing the Frenchman.
Harry Redknapp believes Dimitri Payet's injury earlier this season could end up helping West Ham United's campaign, according to his regular column in the London Evening Standard.
Indeed, the time spent out could keep the Frenchman fresh during an important run in, argues the pundit
And Redknapp told the Standard: "Payet has made a big difference. He is an outstanding player. He was named Player of the Year at last week’s London Football Awards - that’s how good he’s been. He is right up there for signing of the season, too.
"It is no coincidence that West Ham don’t look as strong without him but that injury he had earlier in the season should leave him with plenty in the tank as the demands of the run in take hold."
If Redknapp's theory proves true, the Hammers could do with a virtuoso performance from the 28-year-old at Old Trafford on Sunday afternoon.
West Ham have an outside chance of finishing in the top four, while they are strong contenders for the top six.
But few would disagree that a strong cup run would be a great way to celebrate their last ever season at Upton Park.
Manchester United looked mediocre as West Brom beat them last weekend, while Payet has the ability to completely control the midfield at Old Trafford. An away trip will be difficult, though, but West Ham have won at the Emirates and the Etihad already this season...