#1
Excellent Stability / Excellent Health
Starters: Anthony Castonzo (LT), Quenton Nelson (LG), Ryan Kelly (C), Mark Glowinski (RG), Braden Smith (RT)

Injuries: Anthony Castonzo (knee), Le'Raven Clark (Achilles)

Backups: (T): Chaz Green, Le'Raven Clark (G): (C): Danny Pinter

Fantasy Impact: Phillip Rivers' arrival in Indianapolis finally gifts him the luxury of an elite offensive line. The 39-year-old veteran never boasted mobility as one of his top traits, but standouts Quenton Nelson, Branden Smith and Anthony Castonzo should provide more than enough stability to keep him consistently upright. This Colts unit has a tremendous floor and a ceiling, being the team's top protective front, and returning all five starters for 2020 should serve to minimize any early-season hiccups. Plus, new top RB Jonathan Taylor gets the benefit of tremendous run blocking.

Trending: Steady

#2
Excellent Stability / Excellent Health
Starters: Terron Armstead (LT), Andrus Peat (LG), Erik McCoy (C), Cesar Ruiz (RG), Ryan Ramczyk (RT)

Injuries: Nick Easton (concussion)

Backups: (T): Ethan Greenidge (G): Derrick Kelly, Nick Easton, Will Clapp (C): Will Clapp

Fantasy Impact: Boasting what's arguably the best tackle duo in the league - Terron Armstead and Ryan Ramczyk - the Saints could probably get away with substandard play on the interior line. However, they've instead been gifted with solid starters all around, with 2019 second-round pick Erik McCoy proving to be a reliable starting center during his rookie season. LG Andrus Peat re-signed long term, positioning the team to return four of five starters along the O-line. First-round rookie Cesar Ruiz enters the season as the only question mark among what was one of the few elite groups in the league last year.

Trending: Steady

#3
Good Stability / Excellent Health
Starters: David Bakhtiari (LT), Elgton Jenkins (LG), Corey Linsley (C), Lucas Patrick (RG), Billy Turner (RT)

Injuries: Lane Taylor (knee, IR), Simon Stepaniak (knee), Corey Linsley (knee, IR)

Backups: (T): Yosh Nijman, Rick Wagner (G): Jon Runyan, Elgton Jenkins (C): Lucas Patrick

Fantasy Impact: Having a left tackle with a strong case to be considered the best in the league at his position, such as David Bakhtiari, can serve to elevate the play of an entire offensive line. Such is the case in Green Bay, where concerns linger around most other spots on the O-line, save standout C Corey Linsley. Rick Wagner is hoping to bounce back from the worst campaign of his career and replace Bryan Bulaga at RT, LG Elgton Jenkins is looking to build off a solid rookie year, and Billy Turner's ceiling at this point may be that of a league-average starter. Losing RG Lane Taylor (knee) to a season-ending injury Week 1 has the potential to limit this unit's upside all year, though Lucas Patrick has quickly transitioned into a reliable starter.

Trending: Down

#4
Excellent Stability / Fair Health
Starters: Jedrick Wills (LT), Joel Bitonio (LG), JC Tretter (C), Wyatt Teller (RG), Jack Conklin (RT)

Injuries: Wyatt Teller (calf)

Backups: (T): Chris Hubbard, Kendall Lamm (G): Evan Brown (C): Nick Harris

Fantasy Impact: Cleveland went all in on bolstering the O-line this offseason, and for good reason after the unit struggled mightily in 2019. Former Titans RT Jack Conklin was the largest offseason splash for the team, and the Browns used the No. 10 overall pick to select LT Jedrick Wills and bookend the other portion of the line. Both players have been clear upgrades at the tackle spots, and along the interior both LG Joel Bitonio and C J.C. Tretter have proven to be high-end starters. Overall the rebuilt O-line looks like an above-average unit with top-10 upside -- especially in terms of run blocking.

Trending: Up

Want to see our full offensive line rankings?

We have rankings and notes for every NFL team, but we reserve the full list for paid RotoWire subscribers. This is just one of many features you'll get access to if you decide to subscribe.

Unlock Our Offensive Line Rankings Unlock Our O-Line Ranks