Another week of NBA action has pa sed, meaning it's time for ourlatest installment of power rankings.Three weeks have now gone by in the 2021-22 season and Joe Montana T Shirts as teams approachthe 10-game checkpoint, we're learning more about who's who around the league. While a select few teams have come out of the gate firing on all cylinders, there are some other teams with majoraspirations that have stumbled while they work to figure things out.As always, there have been a few early-season surprises, but it's far too soon to determine whether or not the succe s will be sustained for 82 games.As a reminder, these power rankings are a reflection of where teams stand up to this point in the season and not a projection of where they may land later in the season.With that in mind, let's get into therankings following the week that was.The undefeated and the winle sUndefeated:76ers (4-0), Nets (3-0), Suns (3-0), Clippers (4-0), Warriors (3-0), Cavaliers (4-0)Winle s:Pelicans (0-3), Pistons (0-3), Timberwolves (0-3), Hornets (0-4), Rockets (0-4)Biggest riserPhiladelphia 76ers:14 5Biggest fallerLos Angeles Lakers:5 12Weekly scoring leaderDeMar DeRozan - 33.0 ppg on 61.4 percent shooting from the field, 66.7 percent from beyond the arc and 86.2 percent from the free-throw line through three games. NBA Power Rankings 2021 1. Miami HeatPrevious rank: 3Overall W-L: 7-2Last week: 2-1Upcoming:at Nuggets, at Lakers, at Clippers, at JazzX-Factor: Tyler Herros Sixth Man of the Year campaignHerro is off to a blazing start this season, averaging 21.3 points per game while shooting 47.4percent from the field and 42.6percent from 3. His scoring average is the highest of any player in the league coming off of the bench, and hes also Miamis second-leading scorer, providing a nece sary punch on offense. If the Heat are going to reach their championship aspirations, theyll need Herro to continue to produce at this level. Kyle IrvingMORE: 2. Utah JazzPrevious rank: 2Overall W-L: 7-3Last week: 2-2Upcoming: vs. Hawks, vs. Pacers, vs. HeatX-Factor: Donovan Arik Armstead Jersey Mitchells fourth-quarter scoringAfter a slow-ish start to the season, Donovan Mitchell has picked things up on the offensive end for the Jazz, taking over down the stretch in wins over the Kings and Bucks. Last season, he was in fourth-quarter scoring. While the Jazzs team-first offense yields balanced results, they look their best when Mitchell is cooking late in games as the teams best shot creator. Benyam Kidane3. Golden State WarriorsPrevious rank: 4Overall W-L: 8-1Last week: 3-0Upcoming: vs. Hawks, vs. Timberwolves, vs. Bulls, at HornetsX-Factor: Golden defenseDraymond Green is looking like the leading Defensive Player of the Year candidate. Andre Iguodala and Andrew Wiggins are flying around on the wings. Gary Payton II is pestering opposing guards off the bench. Stephen Curry is Put it all together, and youve got the team with the .Oh, and the Warriors are doing this without Klay Thompson. Jordan GreerMORE: 4. Brooklyn NetsPrevious rank: 6Overall W-L:7-3Last week Jimmy Garoppolo T Shirts : 3-0Upcoming: at Bulls, at Magic, at Pelicans, at ThunderX-Factor: James Harden returning to MVP formNo surprise here. For the Nets to compete with the best of the best without Kyrie Irving, theyre going to need Harden to find his groove again. Much has been made of his slow start this season, which could be a combination of him still working his way back from the hamstring injury he dealt with last season and some of the rule changes. A good sign for the Nets? Hardens been better lately, posting a triple-double in Brooklyns win over Detroit, a 16-point, 11-a sist double-double in its win over Atlanta and 28 points in its win over Toronto. Scott Rafferty5. Philadelphia 76ersPrevious rank:14Overall W-L: 8-2Last week: 4-0Upcoming: vs. Knicks, vs. Bucks, vs. Raptors, at PacersX-Factor: Seth Currys shootingNo player in NBA history - not even Seths older brother - has shot the ball better to begin a season. Curry is en fuego, drilling over 60 percentof his 2s and 50 percentof his 3s while pumping in a career-high 17.1 points per game. Hes perhaps the biggest reason why the 76ers have the NBAs most efficient offense as Currys true shooting percentage of 76.1 was the best ever through nine games.Best True Shooting Percentage through 1st 9 games of season in 3-Pt Era (since 1979-80), Jerry Rice Jersey minimum 10 FGA per game via Mike Lynch (@SportInfo247) Micah Adams 6. Chicago BullsPrevious rank: 11Overall W-L: 6-3Last week: 1-2Upcoming: vs. Nets, vs. Mavericks, at Warriors, at ClippersX-Factor: Nikola Vucevic finding his feet in a new roleThe Bulls early-season succe s has been carried by DeMar DeRozan and Zach LaVine, who are both top fivein the league in scoring, meaning Nikola Vucevic has been the one to sacrifice touches and scoring opportunities with the big man off to one of the slowest starts in his NBA career. While hes said hes happy to impact the game in other ways with his pa sing, rebounding and screen setting, in matchups against quality big men, how Vucevic picks his moments to step up as secondary scorerwill make the world of difference for the Bulls. Benyam Kidane7. Milwaukee BucksPrevious rank: 1Overall W-L: 4-6Last week: 1-2Upcoming: at 76ers, at Knicks, at Celtics, at HawksX-Factor: Getting and staying healthyCare to gue s how many minutes Jrue Holiday, Khris Middleton and Giannis Antetokounmpo have played together this season? , over two games. Antetokounmpo continues to do his thing you know, putting anyone who dares stand in his way through the rim and blocking but an ankle injury has limited Holiday to four games and Middleton is currently in the leagues health and safety protocols. Until the three of them are on the court together again, theres only so much we can learn about this team. Scott Rafferty8. Phoenix SunsPrevious rank: 10Overall W-L: 3-0Last week: 5-3Upcoming: at Kings, vs. Trail Blazers, at Grizzlies, at Richard Sherman T Shirts RocketsX-Factor: The fallout of the Robert Sarver investigationThe Suns are dealing with i sues much bigger