An understrength Sydney Sixers have put their Big Bash campaign back on track with a comprehensive win over the Perth Scorchers at the SCG.

The Sixers spin trio put the brakes on the Scorchers and made decisive inroads into one of the most powerful batting line-ups in the competition.

After electing to bat first, the Scorchers appeared stunned by Sydney’s double-pronged spin attack to start the game.

At the first sign of intent from Perth they lost the valuable wicket of Shaun Marsh and never truly recovered.

Small partnerships formed but it took some late hitting from Mitch Marsh to boost the score to 8-130.

Spartan Doug Bollinger bowled just the two overs on a slow SCG deck but did manage to snare the wicket of Shaun Marsh in the fourth over.

The Sixers were missing openers Jason Roy and Daniel Hughes for the reply but it mattered little as Sam Billings relished his promotion in the batting order.

He climbed into the spin of Ashton Turner, produced two of the finest reverse sweep boundaries ever see in the BBL to set the Sixers in motion.

When he fell for a game high 40, the Sixers needed less than a run a ball for victory.

Andrew Tye was the pick of the bowlers with 3-15 from his four overs, but some mature batting from man of the match Johan Botha saw the Sixers home.

They grabbed the points with 12 balls to spare to go 2-1 in this year’s Big Bash League.

The tournament remains in Sydney tomorrow night with the winless Thunder hosting first-round winners Brisbane Heat.