Will I get flagged for using too many of the same keywords?

Hi, So lets say I want to do a niche affiliate site on baseball. Say my website name is baseballguide.com. Naturally, I am going to have many articles with the word baseball. So I might write up to 10+ articles that I want to rank for, which goes like:

baseball hats
best baseball bats
baseball rules
baseball gloves
etc. etc.

Will I get red flagged for this? Considering that my domain already indicated clearly that I am a pure baseball niche sites?