Aberdeen have been denied in their bid to take Blackburn Rovers midfield prospect Jason Lowe on loan.
Dons boss Craig Brown had hoped to bring the 19-year-old to Pittodrie, but it appears that the club's plans have been scuppered by a growing injury list at Rovers.
Despite one setback in the market, Brown remains committed to doing some deadline day business, hinting at a possible new arrival on Monday.
"We are still pursuing a player, we think by the deadline we should have something done," Brown said.
"This is a defensive player, a midfield player who can play at the back. He is based in England but has experience in Scotland, he's a respected player. It's 90% certain.
"It's not Jason Lowe, we were interested in him but he is required by Blackburn.
"He was on the bench on Saturday, they have a couple of midfield players injured."
While Aberdeen look to bolster their side during the window, the headlines have centred on the future of striker Chris Maguire.
The 22-year-old is out of contract in the summer and had looked like securing a loan move to England, a prospect Brown has firmly rejected.
"Chris Maguire is here at least until the end of the season and hopefully beyond that," Brown added.
One player who does look certain to leave the club is Andrius Velicka. The on-loan Rangers striker has held talks with Swiss side St Gallen ahead of a proposed move.
Brown confirmed: "There may be a possibility for Velicka to depart but if it's cross-border he doesn't need to be away.
"There is interest in him, I think it's safe to say he will not play for Aberdeen again this season."