The 2019 NASCAR DFS season kicks off next week with Daytona Speedweeks. DraftKings is offering a huge $750,000 prize pool for the Daytona 500, and as in previous years, we expect DFS slates for The Clash and The Duels. To help you take advantage of the biggest NASCAR DFS contest ever, RotoDoc is back with a Daytona Speedweeks package for $29. After that, the new 2019 rules...