Emery joined PSG in June 2016 following a successful time with Sevilla where he won three consecutive Europa League titles.
The Spanish coach won many trophies during his tenure in France, but could not bring the Champions League title to the Parc des Princes.
Emery’s PSG threw away a 4-0 first leg win in the last 16 of the Champions League against Barcelona in the 2016-17 season, with the La Liga giants winning the reverse fixture 6-1.
In an interview with France Football, the 48-year-old has blamed the lack of VAR for failing to lead PSG to their most desired trophy.
'In Paris, I missed the chance to become the best coach in the world,' he said.
'I won the league, four domestic cups and two Trophees des Champions. But the ultimate goal was the Champions League.’
'The first year, in the round-of-16 against Barcelona, were played a really high-level first leg. In the return leg, we were knocked out because VAR didn't yet exist.’
‘We were very clearly knocked out by refereeing decisions.’
'The second year, against Real Madrid, we bowed to a team who recorded an historic hat-trick and, again, in the first leg, we could find fault with the officiating.’
'To conclude: we lost the first time on refereeing decisions, and the second against the defending and future champions.'
The Spaniard is currently out of work after he was ousted by Arsenal in November.