Entities mentioned:
- Keegan Bradley: Duty, Self-sacrifice, Professional pride
- Team USA: Competitive spirit, Loyalty, Pride
- Team Europe: Competitive spirit, Pride
- Donald Trump: Influence, Recognition
- Sam Burns: Ambition, Professional pride
- Justin Thomas: Loyalty, Competitive spirit

Article Assessment:
Credibility Score: 75/100
Bias Rating: 45/100 (Center)
Sentiment Score: 55/100
Authoritarianism Risk: 20/100 (Strongly Democratic)

Bias Analysis:
The article presents a balanced view of Bradley's decision, including multiple perspectives and historical context. While it leans slightly towards a positive portrayal of Bradley's choice, it also acknowledges the potential personal cost, maintaining a relatively neutral stance.

Key metric: International Sports Competitiveness

As a social scientist, I analyze that this article highlights the complex interplay between individual ambition and team loyalty in international sports. Keegan Bradley's decision to prioritize his role as captain over his potential participation as a player demonstrates a significant shift in leadership approach for Team USA. This self-sacrificing act could potentially boost team morale and unity, which are crucial factors in team performance. The article also underscores the intense pressure and scrutiny faced by sports leaders, particularly in high-stakes international competitions like the Ryder Cup. Bradley's decision-making process, influenced by his past experiences and current performance, reflects the dynamic nature of sports strategy and the importance of adaptability in leadership roles. This situation may have a positive impact on USA's international sports competitiveness by fostering a culture of selflessness and commitment to the team's success over individual glory.