Celtic chief executive Peter Lawwell said sorry to his Stranraer counterpart.
The goalkeeper has returned to Anfield after spending the first half of the season at Pittodrie.
The goalkeeper could return to Pittodrie after spending the season so far on loan at Falkirk.
Tony McGlennan will look into potential rule breaches during the fourth round tie at Stair Park.
The Spanish striker hasn't featured since being suspended from the club in November.
Gregor Townsend's side suffered a costly defeat to Racing, whilst Edinburgh extended their winning run against Benetton Treviso.
Falkirk were unbeaten in December, taking points off both Hibernian and Rangers in the process.
Your daily round up of the latest movement in Scottish football and beyond.
The striker took his tally for the season to 22 goals as the Hoops cruised through at Stair Park.
The English forward found the net three times, with Lee Wallace and Barrie McKay also scoring.
The Highland club are interested in securing the Celtic striker until the end of the season.
Your daily round-up of all the best transfer news and gossip from around the football world.
A full review of the weekend's three Scottish League Two fixtures.
Morton moved past Livingston, whilst Dumbarton claimed a 2-1 win against Championship rivals Queen of the South.
The struggling Tannadice side claimed a narrow 1-0 win over Airdrieonians in the fourth round.
The Scotstoun side suffered defeat to the French league leaders in the European Champions Cup.
Accies were dumped out of the Scottish Cup fourth round by League Two outfit Annan Athletic.
The striker impressed in the Fir Park side's 5-0 thumping of Highland League side Cove Rangers.
The Aberdeen manager was left angry at some of Robbie Neilson's side's antics in the fourth round.
Robbie Neilson's side moved into the Scottish Cup fourth round at the expense of the Dons.