Al Ahli sought to get back into the tie, and could have found a leveller had Simao Mate's snap header
just missed the target.
The best chance of the'opening period came late on in the half, with a snap header
by Mexico's'Andres Guardado.
Slovenian referee Damir Skomina flahsed three yellow cards, two to Gharafa players and one from Al Sadd, who almost drew the first blood as early as in the fourth minute when Mamadou Niang produced a snap header
from close range but his attempt hit the goal-post and bounced back into play.
His snap header
from a Jason Hill corner kick, flashed inches over before he failed to touch home a David Howland pass.
North Korea had moments of hope with the best opportunity falling to Young-Hak Ahn whose snap header
Robin Van Persie grazed the Bolton bar with a snap header
soon afterwards as the game at last began to get stretched.
However, the visiting keeper looked less comfortable dealing with Mikel Arteta's corner moments later, Barbosa misjudging the flight of the ball and thankful Tim Cahill wasn't quite able to direct his snap header
Substitute Cameron Jerome saw his snap header
pushed against the bar by Sullivan, while McAnuff's controlled, accurate volley from 20 yards rebounded from the woodwork with the keeper helpless.
At the other end Johnson's effort from just inside the box was inches past, before Iain Diack, struggling to shake off an early ankle knock, sent a snap header
just over Brown's bar from Greig Henslee's cross.
Staunton's firm tackle on Mijatovic curbed a dangerous situation and when Sinisa Mihajlovic floated it a corner it was half cleared to Dejan Govedarica, whose snap header
was deflected wide.
Omar Barry kept Al Rayyan in the tie with an instinctive save to deny a snap header
from leading scorer Baghdad Bounedjah in the 33rd minute.
Conor Downey did well on the right wing, his cross eluded the Zagreb defence and Gault pounced to direct a snap header
home from close range.