Siraj getting the ball to swing into Labuschagne, who is beaten on the inside edge and struck high on the pads.
A good short ball from Siraj as Labuschagne top edges the pull shot for a boundary to fine leg.
He clips the next off the middle, in the gap through square leg for two runs and nudges the last ball to fine leg for a single.
Nitish Kumar Reddy comes into the attack in place of Akash Deep, who has bowled 11 overs for 28 runs.
The first ball is wide of the off-stump as Labuschagne has an easy leave and defends the next before taking one to deep point.
Khawaja takes a leg bye as he misses the clip off his pads and Labuschagne keeps out the last two balls.