MLB in Australia -- Epic Timelapse Footage Shows Baseball Diamond Built from Scratch

The Dodgers and Diamondbacks have touched down in Australia for their historic series Down Under ... but the most impressive thing -- how the locals erected the entire baseball diamond from scratch.

The teams will face off at the historic Sydney Cricket Grounds ... which is essentially a giant circular field of grass.

Officials rolled in the heavy machinery ... and built a regulation-size MLB field in a matter of weeks ... and TMZ Sports has the incredible timelapse video of the transformation.