“It is very pleasing; we know how difficult it is to be in this position in this league,” he added.
“We’ve earned it; we have come a long way as a team.”
Arteta played a role in Martinelli’s third goal on Sunday.
The manager quickly got the ball back for an Arsenal throw-in, with many fans claiming he got the assist.
“I saw an advantage and I took it; we have to be alive and that is the way I live the game,” Arteta said.