But the Abergavenny-born player, who also gave a tidy performance behind the stumps, is keen to play down the possibility of graduating to the senior side.

"I think it's a long way off yet," said Wallace after his maiden first-class ton had failed to stop Derbyshire claiming victory in Cardiff.

"Besides, I'm not really cemented in the Glamorgan side yet.

"That has to be my first objective. Play a full season of county cricket and then let things take care of themselves."

His superb century was all the more commendable as it came on top of a third-ball duck in the first innings.

"I had a few phone calls from the friends I made on the Academy tour, who were quick to remind me I was on a pair. I suppose the best way to get off a pair is to score 100.