Lacazette's stunning headed opener on two minutes underlined Arsenal's undoubted brilliance on the front foot; an attacking ability strengthened by the arrival of the club's record signing.
Since the start of last season, Giroud has scored seven Premier League goals coming off the bench - three more than any other player in the same period.
Mourinho's Man United have to win PL title
Ensuring the right supply is available for Lukaku will be one of Mourinho's biggest challenges this season. They didn't sell, like some were expecting, the top players - (Mesut) Ozil, Alexis (Sanchez ).
Shinji Okazaki heads in the equaliser from close range.
Arsenal fans heading to the Emirates would have been desperate to see Lacazette get off to a fast start at his new club.
Mesut Ozil played a pass in to Lacazette, who tried to turn and fire, but his shot was fortuitously deflected right to Kolasinac, who unselfishly tapped across for Welebeck to score. But for Arsenal the same old problems at the back resurfaced in worrying fashion in their curtain raiser with Leicester. "I just think we are not open - what I said to you many times - to any offers, anyway".
He drove at Arsenal's defence and his sublime whipped cross found the England global who couldn't miss from inside the six-yard box completely against the run of play.
"We saw it though for 83 minutes", Leicester manager Craig Shakespeare said, "and to concede two late set-plays in the manner we did is obviously hard to take".
Dollar hits 8-week low vs yen on intensifying N.Korea tensions
The Swiss currency was also on track for its biggest daily gain against the euro since last year's Brexit vote. The dollar index was modestly up during Asian trading to last trade at 93.48, linked to the weaker euro.
Eleven minutes into the second half Vardy restored Leicester City's lead. Wanting an offside call, the Leicester defense nearly all simultaneously stop and raised their arms.
After a much-needed break for all involved to take a deep breath, the second half started in much quieter fashion until ten minutes into the second period.
Arsene Wenger will be delighted if Lacazette puts in more performances like this. "As a game is in 90 that would guarantee you a goal".
Wenger further reiterated the point in his written press conference, describing Giroud's decision to remain with Arsenal as a "relief" and "one of the greatest days I've had in recent months".
Northeast eclipse glasses safe
Because the eclipse will only be partial, it's essential that anyone wishing to view it obtain the correct protective eyeware. You will be standing in the sunshine watching with your safe eclipse glasses as the moon takes a "bite" out of the sun.
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