Bumrah bowls it down the leg side as Head misses the clip off his pads before he again misses the flick next ball.
The next ball swings away as Head pushes at it to be beaten on the outside edge before he takes a single off the fifth ball.
Rana announces himself on the big stage. He strikes with the big wicket of Head, who is cleaned up by a beauty from the young pacer.
The length ball angled in initially before moving away late to beat Head on the outside edge and crash into the off-stump.
Rana grabs his first wicket in Test cricket as Australia slip to 31/4.
Mitchell Marsh gets off the mark with a single, nudging the pacer on the leg side.
Labuschagne finally gets off the mark from the 24th ball faced as he pulls Rana to fine leg for one and gets a big cheer from the crowd.