The Senegal-born front-man got his three-timer in a 4-0 triumph at Sunderland which is bound to receive a glowing report from Red Devils reserve boss Ole Gunnar Solskjaer.
Diouf has already made two substitute appearances since his arrival from Molde - Solskjaer's former club - this month and scored his first goal against Burnley last week.
Contention: Mame Biram Diouf could earn his first senior start against Hull
And, with Sir Alex Ferguson needing to keep an element of freshness in his team for next week's Carling Cup decider with Manchester City, Diouf could get the call as United look to go top of the Premier League by beating Hull at Old Trafford.
Gabriel Obertan and Danny Welbeck were also involved in a match watched by Black Cats boss Steve Bruce, while Ferguson will also be delighted that Federico Macheda made a 15-minute appearance after a lengthy spell out through injury.
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