South Africa solidified their status as the world's top rugby team with a 3-1 victory over New Zealand in the Rugby's Greatest Rivalry series. After losing the first Test in Johannesburg, the reigning world champions went on to win three consecutive matches, securing the series with a 43-28 win in Baltimore. This series, which replaced the Rugby Championship for 2024, will be repeated in 2029. With the Rugby World Cup set for next year, the series offered insights into both teams' strategies and how they might perform in the upcoming global competition. South Africa's new attack coach, Tony Brown, a former New Zealand coach, signaled the team's intent to dominate all aspects of the game. Brown, who will join New Zealand's coaching staff in 2028, is known for his focus on cohesive attacking strategies and sharp ball movement. However, South Africa had to adjust their approach after being outscored in the first two Tests. They turned to their physical strength, particularly in mauls and scrums, which were crucial in their previous World Cup victories. A powerful maul that led to a decisive try by Malcolm Marx highlighted this strategy. South Africa's use of physicality proved effective, especially in the final Test in the U.S. Fly-half Sacha Feinberg-Mngomezulu, who had been injured earlier in the year, returned to start all four Tests. Despite showing improvement, he lacked his usual flair. There is uncertainty about whether South Africa will rely on 32-year-old Handre Pollard, who had been key in previous big matches, to close out games. Meanwhile, South Africa's experienced core, including players like Eben Etzebeth and Pieter-Steph du Toit, continues to be a regular presence, showing the team can blend physicality with an attacking style. New Zealand's performance was impacted by the departure of their former head coach, Scott Robertson, in January. Dave Rennie, who took over, quickly made an impression with a stunning win over South Africa in Johannesburg. Rennie focused on rebuilding the team's attacking identity, trusting young players like Cam Roigard and Ruben Love to bring back the All Blacks' traditional flair. While Love struggled in some matches, the return of Richie Mo'unga, a key player from the 2023 World Cup, offers hope for the future. As Rennie continues to develop his team, the next year will be crucial for New Zealand's resurgence. South Africa thrives in high-pressure situations, as noted by Schalk Brits, a former World Cup winner. The team's recent loss in Johannesburg, which briefly cost them the top ranking, revealed vulnerabilities. Despite this, South Africa remain favorites for the upcoming World Cup in Australia, a new challenge for them. Brits believes France, with their tactical flexibility, could be a strong contender, while also cautioning that Ireland, who are quietly improving, should not be underestimated. As the rugby world looks ahead, the rivalry between South Africa and New Zealand will continue to shape the sport's future.