Tottenham Hotspur beat north London rivals Arsenal 1-0 in a pre-season friendly in Hong Kong.
Pape Sarr scored the winning goal in the first half, lobbing goalkeeper David Raya from close to the halfway line after catching the Spaniard off his line.
New Arsenal signings Viktor Gyokeres and Christhian Mosquera made their non-competitve debuts for the club as second-half substitutes.
But the Gunners were dealt an injury blow when Leandro Trossard was forced off.
Heung-min Son featured for Spurs, coming on as a substitute amid uncertainty around his future.