Not much head scratching is required when it comes to deciding how to start a wish list for tennis in 2019.

A sport that has long been concerned about punching below its weight spent too much of last year elbowing itself in the ribs as its too-numerous leaders traded blows and crossed purposes.

This is no way to run a niche sport concerned about market and mind share in a ruthlessly competitive global entertainment landscape. Improvement is all the more urgent with tennis’s biggest stars, Roger Federer and Serena Williams, both 37.

And so with a new season about to get serious with the start of the Australian Open on Monday, my No. 1 wish for tennis is unity. In an ideal world, that would mean unified governance.