Morton stormed out of the blocks against Dundee on Saturday.

David O’Brien fired over a dangerous cross in the seventh minute, but no one had managed to keep up with his blistering run and the ball ran out for a throw in.

Moments later, Michael Tidser smashed a disappointing free-kick into the Dundee wall after Rab Douglas had careered out of his box with the ball in his hands.

Tidser made a more positive contribution in the 14th minute when he made an energetic overlapping run, accepted a pass from Sean Fitzharris and stood up a cross for Marc Smyth, but Smyth’s glancing header bounced agonisingly wide of the upright.

Weatherson fired a ferocious drive inches past the same post two minutes later and then turned provider in the 20th minute with a well-weighted pass over the top for Kean.

He flicked the ball over the on-rushing Douglas, but then miscontrolled and the chance was gone.

Ton were steamrolling their hapless opponents.

And they should have opened the scoring 20 seconds later when Jenkins released O’Brien with a clever angled pass.

The ex-Dundee man failed to notice Kean, who was unmarked and screaming for a square pass.

Instead he drove to the by-line, before flashing the ball across the face of goal.

Morton were punished for their profligacy when the home side took the lead against the run of play in the 25th minute. Stuart McCaffrey was adjudged to have hauled Stephen O’Donnell to the ground inside the box and Matt Lockwood sent Stewart the wrong way with a cool penalty.

Morton were unfazed, however, and Fitzharris and Weatherson both went close as they piled on the pressure in search of an equaliser, which eventually arrived in the 40th minute.

Smyth’s thunderous close-range volley was blocked by Gary Irvine’s face.

Kean powered Fitzharris’ resultant corner off the underside of the crossbar, leaving Weatherson the simple task of tapping the ball into the empty net to restore parity.

Dundee almost retook the lead when O’Donnell let fly from 25 yards, but his stunning strike rattled the crossbar and the sides went in level at the break.

In the second half, Morton looked a shadow of the side that dominated the first half and it was no surprise when substitute Colin McMenamin glanced home Lockwood’s corner to fire his side back into the lead just before the hour mark.

Nicky Riley crashed a spectacular bicycle kick off the face of the crossbar and McMenamin headed over with the goal at his mercy as Dundee threatened to make it 3-1.

Morton eventually found a second wind with 10 minutes left on the clock.

They finished the match with a flurry, as substitute Brian Graham had a shot deflected wide.

He then fired the ball into the side netting after Douglas had pulled off a superb save to block Jenkins’ powerful header.

But it was too little, too late.

Morton succumbed to a disappointing defeat which leaves them propping up the table over the upcoming international break.