Wireless Connection It may not be used by everyone but pro sports photographers use Wi-fi to transfer files simultaneously without having to wait to change the memory card.
Slow Continuous Shooting: 1.0fps In the world of sports photography, faster is always better.
Environmental Sealings Most outdoor sports games are held in all-weather, so your camera has to be ready for difficult conditions such as rain and snow. Exposure to dust and water splashes are also very common in sports.
Slow Max shutter speed: 1/s Blackmagic Cinema 6K's max shutter speed of 1/s is quite slow and it may not be enough to freeze the motion in some cases. Another potential problem may be when you use a fast aperture at very strong light, your camera may overexpose because of slow max shutter speed
Focus Points In sports photography , you keep continuous autofocus (AFC) mode on for tracking the subject and more focus means better tracking.
No Image Stabilization Lack of Image stabilization may result in blurry photos especially at long focal lengths.