Sri Lankan origin Ashley Chandrasinghe's debut first-class century seemed about as inevitable as could be for a player making their maiden professional appearance.

Not only did he score more than 100 runs in both his Victoria Second XI (56 and 68) and first grade (144) debuts, but the previous two batters from his club – Casey-South Melbourne – to represent their state also reached three figures in their respective first-class debuts.

The unflappable 20-year-old echoed Bloods greats Wayne Phillips (111 versus the West Indians in 1988-89) and Mick Taylor (107 versus Queensland in 1977-78) with a marathon 119 not out from 333 balls over the weekend against a Test quality attack featuring Tasmanian veterans Peter Siddle and Jackson Bird.

There's been a buzz about Chandrasinghe in Victorian cricketing circles ever since he scored 669 Premier Cricket runs in his first full season as a teenager.

The batter, of Sri Lankan descent who was raised in Melbourne's southeast where he now plays his Premier Cricket, said he grew up idolising legendary left-handers Mike Hussey and Kumar Sangakkara and "owes pretty much everything" that he's achieved in his career thus far to his beloved club.