Canadian third seed Milos Raonic has survived a rollercoaster performance to book an Australian Open quarter-final berth.
Raonic rallied to overpower Spaniard Roberto Bautista Agut 7-6 (8-6) 3-6 6-4 6-1.
The highest seed left in the draw, Raonic is looking to improve on his semi-final appearance at Melbourne Park last year.