A majority of Monster Energy NASCAR Cup Series teams recently voted to endorse a '19 rules package related to the so-called All-Star Package that was tested in May, according to sources. The exact number of races it will be used for was unclear, but it is said to be most events at 1.5- to 2-mile tracks, which would be around 20 of the sport's 38 races.

The All-Star Package that was tested at that event this year at Charlotte Motor Speedway is a set of aerodynamic and engine rules that intentionally slow down the cars in a bid to encourage closer racing.

Teams get to vote on major rules changes as part of the charter system.

A source said there were dissenting votes, but that the majority endorsed the package.

--- Sports Business Daily ---