Heavy Jon Rahm is one of the favorites to win The Open Championship and still might be undervalued. The 2025 major season in men’s professional golf culminates this week with The Open Championship, and fans of the sport should be ecstatic. For starters, the oldest tournament on the major schedule returns to Royal Portrush in Northern Ireland for the first time since 2019, and it marks just the third time in the course’s history the Claret Jug will be handed out at weekend’s end. Xander