How should be a blog for a Mixed Martial Arts site?

I have a Martial arts supplies related website and I do have blogs for it, I am wondering how to raise my blog visitors? My Blog has a formal tone where I keep on updating on martial arts trends.

I just want to know, what kind of pitch do you think is best to use for my blog? How closely it should be related to the topic? I just want you to review my blog and give me some valid suggestion, so that we can come up with great and exciting martial arts topics.