Marouane Fellaini
Fellaini's future at United appears bleak. Getty

Marouane Fellaini's future prospects at Manchester United look bleaker after the Belgium international claimed he has nothing to prove to new manager Louis van Gaal, amid reports the 26-year-old will be made surplus to requirements this summer.

Fellaini endured a torrid first campaign at Old Trafford after being signed by former boss David Moyes, making just 21 appearances for the dethroned Premier League champions and failing to score a single goal.

Despite being an ever-present for Belgium during their run to the World Cup quarter-finals since netting the equaliser in the group win over Algeria, Van Gaal is reportedly ready to make Fellaini the first high-profile casualty of his United reign.

Rio Ferdinand, Nemanja Vidic, Federico Macheda and Alexander Buttner have already left the club, but after joining for £27m on deadline day in last summer's transfer window, Fellaini's departure would mark an inauspicious end to his career at Old Trafford.

As Fellaini prepares for Belgium's quarter-final meeting with Argentina on Saturday, the former Standard Liege midfielder has faced questions over his future following the signing of Ander Herrera from Athletic Bilbao and reports that Van Gaal is ready to show him the exit door.

Fellaini said: "We will see after the World Cup. I don't have to prove [anything]. I've been a professional footballer for eight years so I don't need to prove [myself]."

Though Netherlands remain in the World Cup themselves and face Costa Rica in their own World Cup quarter-final this weekend, that has not prevented coach Van Gaal from starting to shape his United squad ahead of the new season, signing left-back Luke Shaw as well as Herrera.

But former United striker Dwight Yorke says that the club need further additions

"We know there are six or seven players that they're trying to buy and we are seeing the aggressiveness of Manchester United splashing the cash," he told Sky Sports.

"And they need to. Last season was a bit of a disaster for Manchester United from that point of view and I don't think they can afford to be left behind like they have done."