Entities mentioned:
- US Open: Competitive spirit, Recognition, Legacy
- Doubles specialists: Professional pride, Indignation, Wariness

Article Assessment:
Credibility Score: 65/100
Bias Rating: 50/100 (Center)
Sentiment Score: 55/100
Authoritarianism Risk: 20/100 (Strongly Democratic)

Bias Analysis:
The article presents a balanced view, mentioning both the positive aspects of the changes and the concerns of doubles specialists. It doesn't lean heavily towards either perspective, maintaining a neutral stance.

Key metric: Cultural Influence of Sports

As a social scientist, I analyze that the sudden popularity of mixed doubles at the US Open likely impacts the cultural influence of sports in the United States. The substantial increase in prize money and the implied changes to the competition format suggest an attempt to revitalize interest in a traditionally overlooked category. This could lead to broader engagement with tennis, potentially increasing its cultural significance. However, the resistance from doubles specialists indicates a tension between popularization and maintaining the integrity of the sport, which could affect how the changes are received by both casual fans and dedicated tennis enthusiasts.