This is the ominous stat that may come as a cause for concern for Liverpool fans ahead of their crunch Champions League tie against PSG at Anfield on Tuesday night.
Liverpool hold a slender 1-0 advantage from the first leg thanks to Harvey Elliott's strike just three minutes from time.
That gave the Reds a smash-and-grab victory in a game largely dominated by Luis Enrique's side - as the Parisians failed to find the net despite having 27 shots on goal.
But pessimistic fans of the Merseysiders will not be pleased to learn the stat concerning Robertson.