Dec 5, 2015; Miami, FL, USA; NBA referee Bill Kennedy (left) talks with Cleveland Cavaliers guard J.R. Smith (right) during the second half against the Miami Heat at American Airlines Arena. The H …

Dec 5, 2015; Miami, FL, USA; NBA referee Bill Kennedy (left) talks with Cleveland Cavaliers guard J.R. Smith (right) during the second half against the Miami Heat at American Airlines Arena. The Heat won 99-84. Mandatory Credit: Steve Mitchell-USA TODAY Sports