The Oklahoma City Thunder led the NBA in efficiency differential during the preseason with a mark of +12.5.

During the 14-15 preseason, the Golden State Warriors had the league's best mark with +11.0, which became a first indicator of their jump as title contenders.

Here's the full rankings from the 15-16 preseason:

1. Thunder: 12.5
2. Celtics: 11.6
3. Grizzlies: 11.5
4. Wizards: 10.4
5. Hornets: 10.0
6. Pistons: 7.1
7. Raptors: 5.6
8. Pacers: 4.7
9. Knicks: 4.0
10. Suns: 3.9
11. Nuggets: 3.5
12. Kings: 3.3
13. Magic: 2.8
14. Blazers: 1.8
15. Jazz: 0.4
16. Heat: 0.0
17. Hawks: -0.7
18. Rockets: -0.7
19. Nets: -1.0
20. Warriors: -1.3
21. Spurs: -1.9
22. Lakers: -2.1
23. Bucks: -3.4
24. Bulls: -3.6
25. Pelicans: -3.6
26. Clippers: -4.2
27. Cavaliers: -6.5
28. 76ers: -8.6
29. Mavericks: -10.7
30. Wolves: -11.0

The Denver Nuggets have waived Nick Johnson, Oleksiy Pecherov and Devin Sweetney.

Johnson, 6-3, 202, appeared in six games (one start) for Denver in the preseason, averaging 2.2 points, 2.2 rebounds and 1.7 assists in 17.7 minutes per game.

Pecherov, 7-0, 232, appeared one preseason game for Denver, averaging 6.0 points and 1.0 rebounds in 7.4 minutes per game.

Sweetney, 6-6, 200, played in four preseason games for Denver, averaging 1.3 points in 3.3 minutes per game.

The Nuggets roster now stands at 15 players.

Matt Moore (@HPBasketball) of CBS Sports and the creator of Hardwood Paroxysm joins Nate Duncan (@NateDuncanNBA) to preview the Denver Nuggets 2015-16 season.  

Topics include: What to expect from impressive rookie point guard Emmanuel Mudiay, the change in culture under coach Mike Malone, whether this team should go big or small in crunchtime, how second-year players Jusuf Nurkic and Gary Harris project, and Matt's wildly optimistic prediction for the Nuggets' record.

Subscribe to the Dunc'd On Basketball Podcast on iTunes or via the XML feed.

Click here for other team previews from the Dunc'd On Basketball Podcast.

The Denver Nuggets have waived guard Matt Janning.

Janning, 6-4, 198, appeared in two games for Denver in the preseason, averaging 1.0 points in 4.6 minutes per game.

The Nuggets roster now stands at 18 players.

Emmanuel Mudiay has embraced watching game film in order to improve. Mudiay believes it may be his biggest aid in getting better and adjusting to the NBA game.

“Because the game is fast…I’m not going to say real fast, but I was just making decisions I knew were bad decisions. But now, the more I’m watching, the more film I see, the better it is,” he said. “I started (watching) a little bit in China, and I’ve seen how important it was. So now it’s like I’m always trying to watch film, I’m bugging people to watch film.”

Mudiay and Jahlil Okafor are co-favorites for NBA Rookie of the Year.

The Denver Nuggets have exercised the third-year options on guard Gary Harris and center Jusuf Nurkić for the 2016-17 season.

Harris, the 19th overall pick of the 2014 NBA Draft, averaged 3.4 points and 1.2 rebounds in 13.1 minutes per game as a rookie in 2014-15. He is averaging 11.3 points, 2.3 rebounds and 1.67 steals while shooting .500 (5-10 3FG) from beyond the arc through the Nuggets’ first three preseason games.

Nurkić, the 16th overall pick of the 2014 NBA Draft, averaged 6.9 points, 6.2 rebounds and 1.10 blocks in 17.8 minutes per game as a rookie in 2014-15 and earned a spot on the NBA All-Rookie Second Team.