36
Mins
The rejigged visiting defence was quickly under pressure, Dean Shiels played a neat one-two with Zdenek Kroca and only a brave Peter Enckelman save at the feet of the Northern Irishman prevented an opening goal.
Saints settled and Sheridan slipped past Mohamadou Sissoko but was denied by a fine, one-handed save from Bell.
The home defence were looking increasingly uncertain and, when Robertson poked the ball forward, Sandaza took advantage of Manuel Pascali's slip on the wet surface before firing low past Bell.
Kilmarnock responded and, after Enckelman let a corner slip from his grasp, Craig had to clear off the line when Kroca prodded the ball goalwards
Rory McKeown's long-range effort struck the crossbar before Kilmarnock eventually registered.
Paul Hefferman had a powerful low drive turned wide by Enckelman at full stretch and, from the corner, the ball struck the head of Anderson under pressure from Pascali and Sissoko and it looped over the goalkeeper and into the net.
Kilmarnock ought
to have taken
the lead on the
stroke of
half-time when
Hefferman set up
Kroca and,
although the
defender neatly
sidestepped his
marker, he fired
straight into
the chest of
Enckelman.
The home side were in control after the break and James Fowler curled an effort over then Enckelman flew across his goal for a fine one-handed block that prevented a deflected Heffernan drive giving Kilmarnock the lead.
Shiels squandered a chance in front of goal before Saints worked themselves back into the game and Sandaza's glancing header from a fine Sheridan cross was pushed away by goalkeeper Bell.
However, when Saints went ahead, it was thanks to a mis-control from Mohamadou Sissoko from which Sandaza slipped the ball through to Sheridan and the striker rounded Bell to roll into the empty net.
Bell sprawled full length to turn a Sandaza drive wide of the far post, but Saints had done enough to inflict Killie's first home defeat of the season.
