"I love the man and the player", Wenger told Sky Sports.
But Arsene Wenger's double change turned the game, FA Cup final hero Ramsey drilling in an 83rd-minute equalizer and Giroud notching the victor two minutes later with a header that hit the bar and bounced over the line.
Each year, the new season comes with a feeling of a fresh start.
Given their poor opening day record (one win in seven before Friday) we should've expected another opening day collapse but given their fine preseason form and an impressive display against Chelsea to win the Community Shield last weekend at Wembley, this inept display against Leicester City was hard to believe.
Vardy, a former Arsenal transfer target, disarmed the Arsenal defence as Leicester led twice before succumbing to two late goals. Harry Maguire stole in at the back post, nodded the ball back across goal to Okazaki and he applied the finish from close range.
Arsenal: Cech; Holding (Ramsey, min. 67), Monreal, Kolasinac; Bellerin, Elneny (Giroud, min. 67), Xhaka, Oxlade-Chamberlain; Ozil, Lacazette, Welbeck (Walcott, min. 75).
"We wanted to do that today - unfortunately that didn't happen and it's something where we can look back and analyse the game and see where we went wrong and improve on the situation".
After Wilfred Ndidi had survived a penalty shout for handball, Arsenal leveled in first-half stoppage time, Danny Welbeck tapping in from Kolasinac's square pass after Lacazette's shot was blocked.
Arsenal beat Leicester at home, something that doesn't always happen to the Gunners, often starting the season with jitters and losses.
Ten minutes after the restart saw the host go behind yet again as Vardy who was unmarked headed a corner from Mahrez in. Ramsey capitalized with an equalizer in the 83rd minute.
Wenger's gamble to field a back three featuring one recognised centre-back collapsed in a display of complete defensive incompetence.