Practice is a great time to work on sick dunks, and NBA superstars are showing that they can break out some wild slams.
Of course, Howard had an advantage over his teammates. The 28-year-old has competed in several NBA Slam Dunk Contests, winning in 2008.
Howard left teammate Chandler Parsons speechless with this dunk:
The big man also threw down a smooth windmill dunk:
Not to be left out, Harden showed what he can do: