In a drab match, the home side took the lead in the 58th minute through Stanislav Andreev's penalty and looked to be on course for all three points until Siddiq's late free-kick caught out substitute keeper Eldor Tadjibaev.

With Pakhtakor already eliminated and Al Sadd already in the next round, the opening 45 minutes threw up very little in the way of goalmouth action.

Dusan Savic saw a shot deflected wide after 26 minutes and six minutes later, Andreev saw an effort from long range bounce up in front of Saad Al Sheeb in the Al Sadd goal but he recovered quickly to smother the loose ball.

Pakhtakor then suffered a setback on the stroke of half-time when keeper Nikita Ribkin was forced off injured following an earlier collision with an Al Sadd player and substitute stopper Tadjibaev took over the gloves.

The second period followed much the same pattern as the first as Al Sadd showed very little ambition to go forward.

And it was Pakhtakor who then took the lead just before the hour mark. Alisher Azizov burst into the box but was brought down by an Al Sadd defender and the referee pointed to the spot.

Andreev expertly steered the penalty into the top corner, sending Al Sheeb the wrong way.

Yusef Ahmed then thought he had grabbed an equaliser for Al Sadd in the 64th minute when he semi-controlled a deep cross from the right before firing home from close range but the goal was ruled out for offside.

Sanat Shikov saw a low drive from the left of the box flash past the far post before Hassan Al Haydos' powerful shot from distance had Tadjibaev scrambling across his goal and the keeper was relieved to see it flash wide.

It appeared that it was not going to be the visitors' day, though, as a minute from time, Al Haydos saw a well-struck free-kick cannon back off the post and Tahir Zakariya hooked the rebound over his shoulder from the edge of the box but Tadjibaev did well to palm the ball away.

However, Al Sadd did equalise in stoppage time. Siddiq's inswinging free-kick from the left curled over everybody's head but unfortunately for Pakhtakor, Tadjibaev mis-judged the flight of the ball and it clipped the underside of the crossbar on its way into the back of the net.