Writing in his ambassador’s column for United Review before the Cardiff game, Neville said: "One of the biggest difficulties has been the absence of our two most clinical, ruthless players in attacking areas, Robin van Persie and Wayne Rooney.
"They have played nine times together this season and we won seven of those games and drew two. They give Manchester United a cutting edge and firepower and the concerns that everybody has at the moment will be alleviated once they return.
"They will give confidence to the rest of the squad, and the important thing now is that they dig in and push forward for the rest of the season and try to deliver the level of performance that they’re capable of as players."
More: Vote for United's January star | Jones hails Mata impact | Moyes demands more