Newcastle capped a stellar day for Saudi Arabia's football project with a 4-1 win over Paris Saint-Germain in the UEFA Champions League on Wednesday that left Kylian Mbappe a picture of despair. Elsewhere, Manchester City won 3-1 at Leipzig. Meanwhile, Barcelona earned their second victory in a row, during which Spain's Lamine Yamal became the youngest player to start a Champions League game at 16 years, 83 days. Lazio scored a stoppage-time winning goal at Celtic in a 2-1 victory.