The first time WrestleMania took place outside of the United States was WrestleMania VI, which was held at the SkyDome (now Rogers Centre) in Toronto, Canada. In the main event match, The Ultimate Warrior won the WWF World Heavyweight Championship from Hulk Hogan. The following year, the event returned to the United States for WrestleMania VII, which was originally scheduled to be held at the outdoors Los Angeles Memorial Coliseum. The event was moved to the adjacent indoors Los Angeles Memorial Sports Arena after poor ticket sales, sold on television as being for security reasons related to the Gulf War and Sgt. Slaughter's storyline defection to Iraq. The event saw Hulk Hogan face defending champion Sgt. Slaughter for the WWF World Heavyweight Championship, while The Undertaker made his WrestleMania debut defeating Jimmy Snuka. Following this, The Undertaker was undefeated in 21 of his WrestleMania matches, until he lost to Brock Lesnar at WrestleMania XXX. The next edition, WrestleMania VIII, was held in the Hoosier Dome with Macho Man Randy Savage defeating Ric Flair for the WWF World Heavyweight Championship and Hulk Hogan defeating Sid Justice via disqualification.