Carlos Alcaraz was in cruise mode as three-time finalist Daniil Medvedev survived a third-round scare to scrape into the Australian Open's last-16 at Melbourne Park.
Home fancy Alex de Minaur marched through in a 6-3 6-4 7-5 win over Frances Tiafoe on Friday night, but Medvedev was made to work when he trailed Fabian Marozsan by two sets to love.
