For Renato Sanches this was a rude awakening on a day to forget for his new team.
The young Bayern Munich starlet was a shock deadline day acquisition by Swansea head coach Paul Clement, his arrival on loan the sort of signing the Welsh club could only have dreamed about in years gone by.
But on a grey, wet September afternoon in South Wales, his first game in the Premier League was if not quite a personal disaster, far from the start his team's new fans were expecting.
The Liberty Stadium is a long way from the the bright lights of the Bundesliga, but with Clement having lost both Gylfi Sigurdsson and Fernando Llorente in the summer window, Swansea are looking to Sanches – as well as Wilfried Bony – to fill the void.
On Sunday, it didn't happen.
Sanches was a bit-part figure and while there is surely more to come from a man widely regarded as one of Europe's best young talents, this was an inauspicious start. Swansea, on the whole, struggled and that must be pointed out when analysing Sanches' individual display.
But his substituting in place of Bony midway through the second half summed up an average performance and almost instantly coincided with Newcastle's winner through Jamaal Lascelles.
Swansea head coach Clement had used his connections at former club Bayern and his close friendship with Allianz Arena boss Carlo Ancelotti to woo Sanches to the Welsh side.
He wasted no time in rushing the Portuguese Euro 2016 winner into action, despite the 20-year-old only arriving in Swansea late on Thursday and having just two training sessions to prepare to face Newcastle.
If it wasn't quite in at the deep end, it was somewhere close.
Beginning on the right of Clement's midfield diamond formation, Sanches had a mixed start, summing up both his and his team's first half.
Two tight turns on the touchline drew gasps of admiration from the home crowd, but each was followed by a misplaced pass. Inside 10 minutes, Swansea's new arrival was also pole-axed by Isaac Hayden, a foul which rightly earned the Newcastle man a booking.
Sanches brushed off that blow, but you got the feeling he was still getting used to his new surroundings in a first period which saw him struggle to impact the game.
In the second half, Swansea were slightly improved, but their new man still looked off the pace, understandably so to a degree. Sanches was on international duty with Portugal's Under-21 side against Wales earlier this week and he rushed back to help his new team.
But after curling a 30-yard free-kick well over the bar and slipping on the ball when running into space, you got the feeling this wasn't meant to be the former Benfica man's day.
Shortly after misfiring with the set-piece, Sanches' day was done.
He was replaced by fellow new signing Bony and received words of support from Clement as he left the field.
Just six minutes later and with Sanches now watching on from the bench, Swansea fell behind to Lascelles' header.
It completed a thoroughly disappointing afternoon.
Lascelles' effort proved to be the game's only goal as on a day which promised so much for Swansea and Sanches, both parties went home disappointed. Welcome to the Premier League, Renato.