Newcastle have found their very own 'mentality monster' in former Liverpool goalkeeper Loris Karius after the German made his debut on Thursday for the Magpies in a 5-0 win over Al Hilal.
Karius joined Newcastle in September on a short-term deal, but manager Eddie Howe is keen to extend his contract after his attitude and performances in training were praised.
The 29-year-old has had to slowly rebuild his career after his performance in the 2018 Champions League final for Liverpool against Real Madrid made him the subject of jokes for rival fans.