You wouldn't believe she's only 18.

With over 50 ODI and T20 caps already for New Zealand, record-smashing bowling and batting accomplishments and an all-round game that beggars to believe, the WBBL's brand new signing belies her years...and sometimes, the laws of physics.

Her 232 not-out and five wickets for 17 runs in an ODI with New Zealand is not only the highest score in a women's ODI match, ever. It's probably the greatest single performance ever registered in the women's game.

β€œTo play alongside three great Aussie players is a big attraction,” Kerr said.

β€œFor me it’s about focusing on my strengths and trying to do my best here. Hopefully I can do well for the Heat.”

Now Brisbane's first international signing, Kerr is a notable figure in women's cricket for her record-holding displays so far, but given she still identifies as a bowling all-rounder, we say definitely watch this space.

She may turn out to be one of the finest imports in WBBL history.