The NFL has set the salary cap for the 2018 season at $177.2 million, an increase from $167 million in 2017.

The NFL's cap has increased by at least $10 million for five straight seasons.

The 6.11 percent increase is the smallest percent increase for the cap from year to year since 2013's 1.99 percent jump.

The NFL's collective bargaining agreement allows teams to carry over unused cap space from one year to the next. It also establishes a spending floor.