The No. 1 overall pick has yet to play in his first regular season game. Williamson is still recovering following arthroscopic surgery to repair a torn lateral meniscus, and the the Pelicans are being (understandably) cautious about his return date.If Williamson is somehow available on Christmas Day, the 10:30 slot suddenly becomes a lot more intriguing. If he’s out as expected, this should be nothing more than a comfortable Nuggets win.FINAL SCORE: Pelicans 112, Nuggets 100 (Double oops!) MORE: Remembering when Kawhi had no time for Christmas cheerNBA Christmas schedule 2019: What games are on today?GameTimeChannelCeltics vs. RaptorsNoon ETESPNBucks vs. 76ers2:30 p.m. ETABCRockets vs. Warriors5 p.m. ETABCClippers vs. Lakers8 p.m. ETABCPelicans vs. Nuggets10:30 p.m. ETESPNLIVE SCORES: Keep up with Christmas Day actionNBA Christmas TV channels, live streamCeltics vs. RaptorsTime: Noon ETTV channel: ESPNLive stream: Watch ESPNWorth watching: Which rising forward will stand out?There is a lot of young talent on the wing here.Pascal Siakam quickly emerged as the Raptors’ leading scorer with Leonard gone and has a strong case to win yet another Most Improved Player award, but he will miss Wednesday’s game with a groin injury. OG Anunoby has bounced back after missing Toronto’s 2019 championship run following an appendectomy, averaging double-digit points and shooting around 37 percent from 3-point range.In Boston, both Jaylen Brown and Jayson Tatum are regularly posting 20-point games and working well alongside Kemba Walker. It’s clear Brown and Tatum could be All-Stars multiple times over the next decade.This Atlantic Division matchup could ultimately be decided by one of these forwards, particularly if they are assigned to guard each other.FINAL SCORE: Celtics 118, Raptors 102Bucks vs. 76ersTime: 2:30 p.m. ETTV channel: ABCLive stream: Watch ESPNWorth watching: Can the Sixers’ size slow down Giannis Antetokounmpo?”The Greek Freak” will face plenty of competition for the MVP trophy before season’s end, but it wouldn’t be a shock to see him go back-to-back. Antetokounmpo has improved his scoring, rebounding and outside shooting, which is incredible considering his level of play in 2018-19. The Bucks are a juggernaut in the Eastern Conference, and Antetokounmpo is the biggest reason why.Philadelphia is built about as well as any team to slow him down. The Sixers can throw massive size at Antetokounmpo with Ben Simmons, Al Horford and Joel Embiid. Who will coach Brett Brown choose to be Antetokounmpo’s primary defender?FINAL SCORE: 76ers 121, Bucks 109Rockets vs. WarriorsTime: 5 p.m. ETTV channel: ABCLive stream: Watch ESPNWorth watching: Will James Harden try to score a million points?Yeah, you might be napping during this one considering the state of the Warriors. However, you should at least keep an eye on Harden’s stat line.The seven-time All-Star already has games of 59 and 60 points this season, and he didn’t play more than 38 minutes in each game. If this contest stays relatively close — or the Rockets just want revenge for past playoff eliminations — Harden might be within range of his career high (61).FINAL SCORE: Warriors 116, Rockets 104 (Oops!)Clippers vs. LakersTime: 8 p.m. ETTV channel: ABCLive stream: Watch ESPNWorth watching: How often will we see LeBron vs. Kawhi?Davis and George will play significant roles in the outcome of the fight for Staples Center supremacy, but there is nothing quite as exciting as watching James and Leonard go one-on-one. In the season opener, the Los Angeles crowd was buzzing any time the superstars stood face-to-face.Ever since the Clippers took that game, the Lakers have been rolling through the rest of the league with the Clips not far behind. This is quickly turning into a fun rivalry, and LeBron and Kawhi are right at the center of it.FINAL SCORE: Clippers 111, Lakers 106Pelicans vs. NuggetsTime: 10:30 p.m. ETTV channel: ESPN Live stream: Watch ESPNWorth watching: Will Zion Williamson be in the lineup?Don’t think so. The NBA’s annual Christmas Day tradition continues with a full slate of five games, including a primetime Western Conference matchup between the Clippers and Lakers. But before LeBron James and Anthony Davis battle Kawhi Leonard and Paul George, there should be plenty of entertainment available as some of the league’s top stars face off.Here’s the full NBA schedule for Christmas Day, including channels, tipoff times and what’s worth watching in each game.