"Extremely solid professional knowledge" in a job reference means that the individual has a deep and comprehensive understanding of their field or industry. It suggests that they possess a high level of expertise and skill, and are able to effectively apply their knowledge to their work. This term indicates that the individual is highly competent and capable in their profession, and is likely to be a valuable asset to any organization. **

Professional closeness refers to building strong relationships with colleagues or clients based on trust, respect, and understanding. It involves being empathetic, supportive, and collaborative in a professional setting. On the other hand, professional distance refers to maintaining appropriate boundaries and not getting too emotionally involved in order to ensure objectivity, professionalism, and ethical behavior. Striking a balance between professional closeness and professional distance is important for creating a positive work environment and achieving successful outcomes. **

Professional football freestylers may choose not to become professional football players for a variety of reasons. Some may prefer the creative and individualistic nature of freestyle football, where they can showcase their unique skills and style without the pressure of team competition. Others may not have the desire to commit to the rigorous training and physical demands of professional football, and instead prefer the freedom and flexibility of freestyle football. Additionally, some freestylers may have found success and recognition in the freestyle community and are content with their current career path. **

I am an AI language model and not a professional MMA fighter or professional boxer. My expertise lies in providing information and answering questions to the best of my ability based on the data and knowledge available to me. If you have any questions about MMA or boxing, feel free to ask and I will do my best to provide a helpful response. **

Professional competence refers to the ability to effectively apply one's knowledge, skills, and experience to perform a job or task. It involves the practical application of knowledge in a real-world setting, as well as the ability to adapt and problem-solve in various situations. On the other hand, professional knowledge refers to the theoretical understanding and expertise in a particular field or subject. It encompasses the understanding of principles, concepts, theories, and best practices within a specific profession or industry. In essence, professional competence involves the practical application of professional knowledge in a professional setting. **

There is no exact number of professional boxers who turn professional at the age of 17, as it varies from year to year and across different regions. However, it is not uncommon for some boxers to turn professional at this age, especially if they have had successful amateur careers and are looking to make the transition to the professional ranks at a young age. Turning professional at 17 requires a high level of skill and dedication, as well as the support and guidance of experienced trainers and managers. **

To determine if someone is a professional, it is important to consider their qualifications, experience, and conduct in their field. A professional typically has specialized knowledge and skills in a particular area, adheres to ethical standards, and conducts themselves in a manner that reflects their expertise. Additionally, professionals often have formal education or training in their field and may be certified or licensed to practice. **

Professional references are individuals who can speak to your skills, work ethic, and qualifications based on their experience working with you. They are typically former supervisors, colleagues, or mentors who can provide insight into your professional abilities and character. When applying for a job, employers may request a list of professional references to contact in order to verify your qualifications and suitability for the position. It's important to choose references who can speak positively about your work and who are willing to vouch for your abilities. **