1. Through their official website: Most teams have official website and will provide contact information or email address. You can send an email or leave contact information through the contact information provided by the website to express your intention or consult related matters.

2. Through social media: Many MMA professional teams have their own social media accounts, such as Facebook, Instagram and Twitter. You can find their official accounts on these platforms and get in touch with them through private messages or messages.

3. Participate in their selection training camps: Some teams hold selection training camps regularly to provide training and opportunities for potential players. You can pay attention to the official announcements or social media of the relevant teams to find out whether they have recruitment activities or selection training camps, and contact them personally by signing up. American MMA professional team is a team composed of a group of top players, who participate in MMA (Integrated Fighting) competitions with the team.