Lewis Bakerâ€™s extra time winner settled a thrilling NextGen London derby as Chelsea did just enough to keep Arsenalâ€™s spirited comeback at bay.
The England Under-19 international turned in right-wing cross from John Swift to cap a remarkable semi-final in which Arsenal battled back from 3-1 down in the last five minutes of normal time.
Strikes from Islam Feruz, Baker and Boga in the first quarter hour of the second-half turned this game on its head after Chuba Akpomâ€™s early goal had given Arsenal the lead.
But the Gunners showed redoubtable spirit to force extra time in the last five minutes thanks to an Andreas Christensen own goal and a glorious last-gasp leveller by Serge Gnabry.
However, Bakerâ€™s intervention settled the game and saw the Blues through.