In contrast, Spurs boss Mauricio Pochettino left Tyneside having seen a satisfactory performance from his men, who were eventually rewarded for their patience.
The Dane shot across the face of goal with 27 minutes gone after Spurs had broken from a Newcastle corner, and he tested goalkeeper Rob Elliot with a dipping volley four minutes before the break.
Dwight Gayle overcame a hamstring injury to lead the Newcastle line and sliced over the crossbar when presented with an opportunity by Dummett, who soon suffered a similar issue and was forced off after just seven minutes - Jamaal Lascelles his replacement.
North Korea standoff wipes $1trn off global stocks
Ongoing global glut concerns lingered in oil markets despite a bigger-than-expected draw in US crude inventories. The DJIA was poised for a fall of 1.1%, making for its worst week since a 1.5% drop in the one ended March 24.
The combative midfielder was trying to get the ball back quickly, Alli moved it away and Shelvey reacted by treading on Alli's ankle. - Dele Alli has scored 13 Premier League goals in 2017; among English players, only Harry Kane (21) has scored more.
Shelvey became the first Newcastle player since Shearer, funnily enough, to be sent off on the opening day of a new Premier League season for the club.
Much of the team that started on Sunday were stalwarts from Tottenham's most successful Premier League campaign ever last season. The red card changed everything. Eric Dier plays, as does Moussa Dembele, while there is also a start for former Magpie Moussa Sissoko.