NBA Power Rankings 2018: Top 5 teams in the league so far

It may seem like a broken record, but until they've been dethroned, they're still the reigning champions. They're 8-1 for the season and on a roll, having won six-straight games. With DeMarcus Cousins due to return to the court, the team only appears to be getting better as the season moves on.

This past week's big game saw two undefeated teams face off. Milwaukee came out on top before losing a few nights later. Still, they have shown themselves to be among the early top contenders in the Eastern Conference and the league, thanks to Greek Freak and the rest of the crew.

Kawhi Leonard has done what most expected he might. The former San Antonio Spurs star has brought a new life to the Raptors. The team was undefeated up until their meeting with the Bucks. However, one has to wonder what may happen in a full series. Toronto is still considered one of the teams to beat in the East, along with Boston.

The Nuggets are among the surprise contenders in the early part of the season, but don't tell them that. They're the only team in the league that can lay claim to a major feat: defeating the Warriors in a game. Now, fans will see how long their success continues.

Among the hottest winning streaks in the league, right now, is Boston's. The Celtics have put together a four-game stretch that included wins over OKC, Detroit (twice), and Milwaukee. Toronto is one of the few teams they'll have to show they can tame, but the Celtics appear back on track for a successful season.