My first look on NBA Christmas Day games is to the Under. Concentration can be called into question on this day because players probably were with their families celebrating the holidays. 
This matchup fits other handicapping elements to the Under in addition to having an early start time. 
The Bucks had the best defensive rating in the NBA last season, holding foes to 102.5 points per 100 possessions. Giannia Antetokounmpo and Khris Middleton are excellent defensive players in addition to being high scorers. Antetokounmpo was the Defensive Player of the Year last season. Now the Bucks added another upper tier defender, point guard Jrue Holiday. So it wouldn't shock if the Bucks' defense was even better this season. 
Golden State was 28th in scoring last season, averaging 106.3 points a game. The Warriors were held to 99 points in a 26-point loss to the Nets in their opening game this past Tuesday. A key takeaway from that game was the Warriors' lack of good ball movement. Not only are they without Klay Thompson, but Draymond Green is out, too. 
Stephen Curry just doesn't have enough offensive help to make the Warriors a high-scoring team. 

(Editor's note: Stephen Nover was one of the top NBA 'cappers on the planet last season winning 61 percent of his plays. Stephen has won 69 percent of his last 52 NBA plays and has an NBA sides play going today in addition to this free selection.)