Even though this is just his second season, Phoenix Mercury coach Nate Tibbetts has led his team to the WNBA Finals, which begin Friday in Las Vegas. (File photo by Truitt Robinson/Cronkite News)PHOENIX – Forward Kahleah Copper wants the Phoenix Mercury to keep it simple as they prepare for the WNBA Finals, which begin Friday in Las Vegas. Their opponent is a familiar one, as the Las Vegas Aces have a chance to win their third title in four seasons. Copper was on the Chicago Sky team that defeated the Mercury in the 2021 WNBA Finals. “It starts with (Las Vegas coach) Becky Hammon, and that onto Chelsea (Gray), Jackie and A’ja,” Tibbetts said.