Apart from the uncertain future of Sam Boyd Stadium, its playing field had been the source of many issues. During the first years of the event's run in Las Vegas, the stadium's standard artificial pitch was used, leading to many safety-related concerns. Some of these concerns were alleviated with the installation of temporary grass surfaces for the 2017–2019 events, but other safety issues inherent to the stadium's design remained. Sam Boyd Stadium was built for American football, a sport with a playing field (including the end zones) that is approximately the same length as a standard rugby pitch but is nearly 20 meters narrower. Because of this, the pitch in Las Vegas was noticeably narrower than at other series stops, with team benches unusually close to the touchlines.