What collaborations has MacKenzie Alexander engaged in with notable sports figures?

I'm sorry, but the available content doesn't directly address any collaborations MacKenzie Alexander has had with notable sports figures. However, as the host and founder of "All Bases Covered" with TDT Media, she's likely had the opportunity to interact with various athletes and sports personalities.

Would you like to know more about her work with "All Bases Covered" or her experiences as a sports journalist?