The 29-year-old has struggled for game time in the north east in recent months – largely due to a knee injury – but he was given the nod by his country in their Group A curtain-raiser, and didn’t waste any time in stamping his mark on proceedings.
The Toon stopper came close to scoring a superb opener partway through the first half, but his improvised near post flick was kept out be Welsh keeper Danny Ward.
Schar then courted attention again moments later with a cynical foul on flying winger Dan James to prevent the Manchester United man from scampering into the Swiss box. The Magpie was given a booking for his efforts.
The centre-back helped his side to a 1-1 draw against Wales, with Breel Embolo’s opener cancelled out by a Kieffer Moore header.
We’ve gathered the best reactions from Newcastle fans on Twitter below...
@NUFC_Africa tweeted: “We have seen the good and the ugly in the space of five minutes from Schar. He is absolutely brilliant on the ball but he has those silly "Bramble" moments in him”
@MichaelNUFC180 tweeted: “The best and worst of Fabian Schar on display today”
@iangregory70 tweeted: “I love Schar. Hope we keep him as just something mad but loveable about him.”
@nufc_zone tweeted: “Fabian Schar, that was absolute filth”
@StevenNUFC tweeted: “Fabian Schar has learnt that flick from Saint-Maximin, hasn't he?”
@darrenfarmer20 tweeted: “Schar is not for sale”
@Pooliemags1Ttv tweeted: “Give Fab Schar a six-year deal!”