Alnwick joins Bradford on a temporary move until the end of the season and will be looking to impress as his contract at St. James' Park expires this summer.
Newcastle have offered no indication that they will offer him a new deal and it means that Alnwick's current move represents a good opportunity for him to secure his future.
The young goalkeeper was brought in by the Bantams to replace Jordan Pickford, after Sunderland recalled him from his loan spell at the start of the week.
On the face of it, bringing in a Premier League goalkeeper would usually be considered a good move for a League One outfit, but Newcastle fans have suggested that he won't make the grade.
The Magpies supporters saw Alnwick in action for a run of games earlier in the season, when injury struck Tim Krul and Rob Elliot, and it seems that his displays have cast doubt over his ability.
As a result, they have warned Bradford fans not too expect too much from their new goalkeeper, with most being rather uncomplimentary towards the young stopper.
Here is the best reaction from Newcastle supporters on Twitter towards Alnwick's move.
Alnwick’s found his level— Mart (@ReturnOfTheMag) March 13, 2015
Hopefully Alnwick stays at Bradford— shay (@hall_shay) March 13, 2015
@StephNUFC part of me does have sympathy for Alnwick. His confidence must be shot to pieces but I wish him all the best.— John Yates FYD (@vivajohnyates) March 13, 2015
@MsiDouglas I'm sorry Mark, I jokingly mentioned Alnwick when you lost Pickford, condolences on it actually happening— Liam Martin (@LiamMartin96) March 13, 2015
Alnwick off to Bradford then. Guess he's gone there to win trophies! #nufc— lincsmagpie (@lincsmagpie) March 13, 2015
Haha! As if someone watched those Alnwick horror shows and thought, “he looks good, we’ll have him” #NUFC— Chris (@Chris_Hewitson) March 13, 2015
Feel sorry for Bradford City getting Jak Alnwick on loan, what a stinker that kid is #Butterfingers— Andy Mc (@AndyMcaskell) March 13, 2015
If Jak Alnwick ends up getting to play in an FA Cup semi final I'll be physically sick— Dan Hedley (@DanHedley92) March 13, 2015