I shoot sports photography for a living and I think you are asking the wrong question. If you aren't going to buy a "professional" camera body then the real issue is the lenses you use. To shoot indoor sports in most high school or middle school gyms you need the fastest lenses you can get. I shoot most of my work with a 24-70 f2.8 and a 70-200 f 2.8. Outdoor daylight sports is a different story. For a low price the Sigma 150-500 or the new 150-600 work pretty well if you can't afford a 400 f2.8 or 600 f4.
Particularly sports with high speeds such as hard hit volleyballs you need a fast shutter speed to stop the action. Can't do that with a kit lens. As long as the camera will support a fast lens and doesn't have a shutter lag it will work for sports photography. The rest is understanding the sport, being in the right spot and timing.

I have read a lot of positive comments about the New Canon 7d mkii as the best sports camera now with 10 fps and priced at around $2.000

As I am a long time Nikon user, but sometimes on the look for other options I was thinking if this new Canon would be my entry ticket to Canon. I am year by year getting more and more time for my photography and was thinking about a sports camera for next spring, and therefore looking at the new Canon 7d mk ii.

But now when I am studying this on the internet another camera with much better specs and price keep popping up on my screen. So my question is, has anyone here got the Samsung NX1? If so, how good is it.

I see it has 4K video, which is not much for me as I am rarely doing videos. But it also has 15 fps, 28 mpx sensor, three times more focus points and much lighter and slimmer plus lot of other features that the Canon has not. Plus it is $4-500 cheaper. Actually the only thing in favor of Canon here is more lenses available for the Canon.

But specs is one thing, real life use is another, so I am curious about if any members here have any experience with the Samsung NX1.

What would you recommend I buy, the Canon or the Samsung?

I had the same dilemma 2 years back. Having already invested in a 70-200 f2.8 for Nikon and other great glass, I sold some old camera and bought a refurbed D3. It is still used by many pro sports photographers in the Philly area and it gets 11 fps without a strain. The auto-focus system is second to none and the pictures are sharp. I noticed you own several older Nikons that could be used to trade up to the D3. If that doesn't work, you can still sell the D3 and go over to the dark side.

PS--one newspaper photographer complained that the new Canon he HAD to use was not as good as the D3 he preferred!! This guy shoots high school, college and pro sports teams for a major newspaper!