Joselu and Ayoze Perez goals in extra time has sent Newcastle to the FA Cup fourth round with a 4-2 third-round replay win over Blackburn at Ewood Park.
Newcastle made 2-0 lead earlier on via two 21-year-olds scoring their first goals for the club, Sean Longstaff netting with a deflected shot in the opening minute and Callum Roberts then marking his full debut with a 22nd-minute volley.
Blackburn countered impressively, with a goal from former Newcastle striker Adam Armstrong in the 33rd minute and Darragh Lenihan levelling it with a header just before half-time ended.
Isaac Hayden – brought on when half-time substitute Jamaal Lascelles went off injured just before the hour mark – went close to putting the visitors back in front in the second half of normal time when his header hit the post.
The Magpies, who had been without a win in their previous six games in all competitions, will host the Hornets on January 26.