The Bulls went 3-1 against the Milwaukee Bucks in the regular season, but none of that matters now.

Both teams enter the postseason with a clean slate.

But both teams also carry some question marks with them.

[NBC SHOP: Gear up for the playoffs, Bulls fans!]

Will Derrick Rose's knee soreness be an issue throughout the series? Will the Bucks' physical style take a toll on the banged-up Bulls? Can Milwaukee's young stars continue to shine?

The answers will be provided in the next couple weeks, but until then, check out a preview of the first-round matchup in the videos below.