Both the Laowa and Sigma are simply magic for sports photographers. I only have the Siggy - but Laowa looks super promising. I also have the Nikkor 200mm f2 VRII which is stellar though I've only coupled it with a D850 and not a D5 or D6.
This gear advancement is far beyond static portraits - it's making real changes for fast-paced image making in the pro market. What a great time to be alive as a photographer. Focus breathing is a worthwhile topic but it's far less important to me than if the lenses can focus track and don't require a monopod to lug to the game fields.
