Rosicky smashed home a half volley after 72 seconds in what was an excellent start from the Gunners - which should have also seen Alex Oxlade-Chamberlain double their lead.
For Tottenham fans the frustrating start to the game must have been enough to pull hair out - as they failed to come out of the traps as quick as their local rivals.
That frustrating was not just felt by the Tottenham fans, but also by their manager Tim Sherwood.
He launched his jacket back at the bench after The Ox fluffed his lines in trying to lob the ball over the Spurs keeper Hugo Lloris - which instantly became something of a Vine hit.
And his reaction saw a humorous Tweet in his direction from an Arsenal youngster.
Austin Lipman can play anywhere across the front three and has been with the club since the age of eight.
He was the under-18s top-scorer last season and the 18-year-old is currently on loan at Conference South outfit Boreham Wood.
But he was certainly watching the game - and took delight in the meltdown of Tottenham’s manager.