Livingston had kept four clean sheets in their previous five league matches at the Tony Macaroni Arena but the visitors prised open a gap in the home rearguard inside five minutes.

Watt wriggled free inside the box after taking in captain Joe Shaughnessy’s free-kick and his pass across the area was tapped into net by Kennedy at the back post.

In front of only 1,476 supporters in West Lothian, Saints had their tails up during the early stages as they enjoyed long spells of pressure inside the Lions half.

And Livingston were relieved to survive when goalkeeper Liam Kelly spilled a low free-kick from Liam Craig that was cleared.

Livingston’s early-season success had been built on a never-say-die attitude and they began to show some of that spirit as the half progressed.

Saints goalkeeper Zander Clark was called into action 10 minutes before the break to pull off a fine one-handed save to deny Scott Pittman.

The midfielder found space inside a congested box to unleash a right-footed effort from 12 yards.

Lions captain Craig Halkett then headed harmlessly wide at the back post from a Steven Lawless corner.

Saints marksman Watt was involved in his side’s next chance at the start of the second half.

The former Celtic player got past Alan Lithgow and his pass picked out Scott Tanser but the left-back swung a wild effort over the bar.

However, similar to the first period, the second period was generally desperately short of goalmouth action.

The hosts probed without causing the Perth outfit any real problems, while Tommy Wright’s side began to find space on the counter.

Livingston substitute Craig Sibbald tried his luck from distance in the 83rd minute but the midfielder’s low drive flew just past Clark’s post.

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