
Heung-min Son gave Pochettino's team the lead midway through the first half and Dele Alli put them two up with a delectable finish after the interval.
Both goals targeted Arsenal's greatest area of vulnerability, long balls arrowed into the heart of a makeshift defence.
It proved their undoing at Southampton on Sunday and it returned to haunted them and Unai Emery's creative forces were not able to compensate as his side crashed to a second defeat in four days.