Will Sutherland and 17-year-old Jake Fraser-McGurk will make their Sheffield Shield debuts on Tuesday in Victoria's match against Queensland.
Sutherland, 20, is the son of former Cricket Australia chief executive James Sutherland.
The all-rounder's confirmation on Sunday night came the day after Victoria announced Fraser-McGurk would be the third-youngest first class debutant in their history.
He will be the youngest Victorian debutant since former captain Cameron White in 2001.
The teenage batsman will wear the No.23 made famous by Shane Warne.
Fraser-McGurk has played two second XI matches for Victoria this season, making 130 against Queensland and 78 in the second innings against South Australia last week.
He has 211 runs at an average of 52.75.
"I wear No.23 for a lot of teams but I'm very excited to get his number," Fraser-McGurk said of Warne.
"He (Warne) was obviously a great player for such a long time so to get that number is pretty special,"
Sutherland has also impressed in List A games this season, taking seven wickets in five one dayers and also hitting a half century.
He captained Victoria in a second XI game against SA, while he and Fraser-McGurk were in a Cricket Australia side that played against Pakistan on October 31.
Youngest Victorian first-class debutants:
Gerry Hazlitt - 17 years 117 days
Cameron White - 17 years 203 days
Jake Fraser-McGurk - 17 years 215 days.