According to ProFootballFocus, the Tampa Bay Buccaneers, Kansas City Chiefs and Cleveland Browns enter 2021 with the best rosters in the NFL.

1. Tampa Bay Buccaneers

2. Kansas City Chiefs

3. Cleveland Browns

4. Buffalo Bills

5. Baltimore Ravens

6. Green Bay Packers

7. Los Angeles Rams

8. Dallas Cowboys

9. Minnesota Vikings

10. Denver Broncos

11. San Francisco 49ers

12. Washington Football Team

13. Tennessee Titans

14. Indianapolis Colts

15. Seattle Seahawks

16. Pittsburgh Steelers 

17. New Orleans Saints

18. New England Patriots

19. New York Giants

20. Los Angeles Chargers

21. Arizona Cardinals

22. Miami Dolphins

23. Chicago Bears

24. Cincinnati Bengals

25. Atlanta Falcons

26. Las Vegas Raiders

27. Carolina Panthers

28. Jacksonville Jaguars

29. Philadelphia Eagles

30. New York Jets

31. Detroit Lions

32. Houston Texans

Dak Prescott is expecting a much better season for the Dallas Cowboys in 2021.

The Cowboys were 1-3 when Prescott suffered a season-ending injury in Week 5 of last season.

"Improvement, a lot of improvement, obviously from last year to this year, but deeper than that from those first five games," Prescott said.

"Take those first five games and just say we're going to be better than that as a team. We're going to play more complementary football from defense to offense to special teams, and then we're going to have a healthy team. We've all approached the offseason. We approached the season the right way. We're just excited. We're excited that hopefully, we can stay healthy, we can get good fortune on that end. And we can just put everything we've worked hard for together on all stages and all phases of the game. We're excited for this year. It's going to be very, very special for us and for Cowboys fans."

The Dallas Cowboys are hoping for a resurgence from Ezekiel Elliott in 2021 after the running back posted career-low numbers last season.

Dak Prescott says Elliott is working hard to get back into form.

"Zeke looks great," Prescott said. "He's in the best shape of his life. Looking fast. Everybody's seen the clips of him working out independently with his running back coach. His cuts, just how explosive he is. Excited to have a full year with him again and getting him healthy throughout the whole season."

Elliott rushed for 979 yards (4.0 yards per carry) and six touchdowns in 15 games last season.

Dallas Cowboys wide receiver Amari Cooper may not be ready for the start of training camp due to an ankle injury, according to a report.

It is not viewed as a major injury, but an "irritation" in his ankle that came to be roughly two weeks ago and it has kept Cooper from being able to run.

Cooper, 26, had 72 receptions for 1,070 yards and six touchdowns in 2020.

Dak Prescott is leaving Adidas and signing a five-year agreement with the Jordan Brand, according to a source.

Prescott will be the only Jordan Brand quarterback, the only Dallas Cowboys player and the highest-paid NFL player on the signature line's roster.

He had been with Adidas since his Pro Bowl rookie season with the Cowboys in 2016.

Prescott also has had deals with Pepsi, Sleep Number, Dannon Yogurt, Campbell's Soup, 7-Eleven, AT&T and Beats By Dre, among others, since becoming the Cowboys' starter.