The player was reported to have been keen to sign for the Magpies, and since he has struggled to find the back of the net.
United need some power and strength up front, and Wickham was Pardew's man, but the owner would not back the manager.
Gus Poyet came to the defence of his strikerafter seeing him fail to cap a creditable performance with a match-winning goal against Swansea on Saturday.
The 21-year-old proved a handful throughout for Swansea skipper Ashley Williams, but when his big chance arrived 16 minutes from time, he fluffed his lines with a wayward header.
As a result, the Black Cats had to settle for a second successive 0-0 Barclays Premier League draw and are still awaiting their first three-point haul of the campaign.
Gus Poyet: "His overall game was great. He held the ball well, he passed it well, he ran with the ball, he created chances for himself, he was in the box more than ever - it's that last touch.
"I think I even moved my head for the header, I tried to head it with him."