Referee grabs the game ball during the FFA Cup round of 32 match between Sorrento FC and Canberra Olympic at Percy Doyle Reserve on July 26, 2017 in Perth, Australia.

The dates, times and venues for the Round of 16 of the FFA Cup have been confirmed.

The opening night of the Round of 16 will take place on Wednesday August 23 and will feature four matches, as will night two, which will take place on Tuesday August 29.

Adelaide United will host Melbourne Victory, as the headline match of the opening night, while former NSL foes, Sydney United and Heidelberg United will also do battle.

Meanwhile, Western Sydney, Sydney FC and Melbourne City will also feature on night two.

Full fixture:

Wednesday August 23

Sydney United 58 (NSW) v Heidelberg United (VIC), 7.30pm, Sydney United Sorts Centre, NSW

Adelaide United v Melbourne Victory, 7pm, Marden Sports Complex, SA

Moreton Bay United (QLD) v Gold Coast City (QLD), 7.30pm, Wolter Park, Albaby Creek, QLD

South Melbourne (VIC) v Sorrento FC (WA), 7.30pm, Lakeside Stadium, VIC

Tuesday August 29

Bentleigh Greens (VIC) v Western Sydney Wanderers, 7.30pm, Kingston Heath Soccer Club, VIC

Blacktown City (NSW) v APIA Leichhardt Tigers (NSW), 7.30pm, Lily Homes Stadium, NSW

Bankstown Berries (NSW) v Sydney FC, 7.30pm, Sydney United Sports Centre, NSW

Hakiah Sydney City East (NSW) v Melbourne City, Leichhardt Oval, NSW