Paramedics took a man to St George Hospital after his car rolled onto its roof on the Princes Highway at Kogarah at 4.30pm today.
Home-bound commuters were delayed as recovery crews worked to take his car away from southbound lanes.
An Ambulance Service of NSW spokeswoman said the man's car was travelling southbound at Kogarah when it crashed and flipped onto its roof.
She said the driver suffered minor injuries.