The Scout is tipping five players to produce big points in Gameweek 34 of Fantasy Premier League, ahead of Friday's 19:00 BST deadline.
Fantasy managers have flocked to the Brighton & Hove Albion defender for his Double Gameweek.
The Seagulls are one of only two teams to play twice in Gameweek 34, along with Cardiff City.
And that has made Duffy the most-bought defender in the Gameweek, with over 85,000 transfers in.
Duffy has been one of the standout defenders for attacking returns in FPL this season.
The Irishman has scored five goals, more than any other defensive rival.
His underlying statistics show why. Duffy’s 29 shots inside the penalty box and 12 shots on target both rank among the top two for FPL defenders.
Brighton will play at home on both occasions in their Double Gameweek 34.
Chris Hughton’s men host AFC Bournemouth on Saturday before entertaining Cardiff on Tuesday evening.
Their defensive record at the Amex Stadium raises Duffy’s prospects further.
Five of their six clean sheets this season have come in home matches.
Brighton's remaining schedule also boosts their chances of beating relegation.
They are the only side with seven matches remaining and have a Double Gameweek 35, along with a home encounter against Newcastle United in Gameweek 36.
That gives Duffy the platform to make his mark at both ends of the pitch and help steer Brighton to safety.
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Part 4: GW34 Ones to Watch: Kevin De Bruyne
Part 5: GW34 Ones to watch: Romelu Lukaku