Inter Milan dropped to fourth place in Serie A after falling 2-0 at Genoa on Saturday.
Inter's defense was in shambles as their record of failing to win at Genoa stretched to over seven years.
The hosts took the lead before the break when a failed clearance attempt from Milan Skriniar ricocheted off of a stunned Andrea Ranocchia, who was charged with an own goal.
Then former Inter striker Goran Pandev was left unmarked to score from the center of the area midway through the second half.
Inter dropped into fourth, two behind Roma, who won 2-0 at Udinese.