The Nuggets’ regular season tipped off on Oct. 23 but it’s said the season doesn’t really start until Christmas. So if you haven’t kept up with the Nuggets until now, don’t worry. I’ve got you covered. The Nuggets are 21-8 heading into their Christmas Day matchup with the Pelicans (8-23) who are still without No. 1 overall pick Zion Williamson….