Tyronn Lue said Cavaliers-Warriors could eventually match Celtics-Lakers as a rivalry.
First, if you ask LeBron James, Cleveland-Golden State would have to become a rivalry at all.
LeBron, via Joe Vardon Cleveland.com:
Of course, Cavaliers-Warriors is a rivalry. These teams have met in the last two NBA Finals, played each other with relentless intensity, talked plenty of trash and remained elite.
LeBron just doesn’t want the Cavs to become comfortable. They’ve beat Golden State in four straight games – the last three of the 2016 Finals and on Christmas – and could extend the streak to five today. Beating a rival that frequently is a cause for celebration, and celebration leads to contentment. LeBron would rather keep Cleveland focused and hungry. Hence, saying the Warriors aren’t a rival.