The Wales international's world-record £86m move from Tottenham in the summer transfer window paved the way for Ozil's switch to Arsene Wenger's side in a £42m deal.
|ARSENE DELIGHTED WITH OZIL INFLUENCE
|6/1||Mesut Ozil is 6/1 with Paddy Power to win the PFA Player of the Year award
"In all honesty, Arsenal paid too much for Mesut Ozil, but that’s because Gareth Bale went to Real Madrid for so much more money. Nobody is worth that much," Lehmann told Spox.
"The Ozil deal was much better. I don’t see a €50m difference between the two players. That’s how that market works when a club like Real Madrid loses the plot."
Ozil already has four assists in the Premier League this season, and had a hand in all three of Arsenal's goals against Stoke as the Gunners climbed to the top of the table.