FLOWERY BRANCH -- A quick roster analysis reveals that the Falcons are thin at the interior line positions and have no one who's started an NFL game behind center Alex Mack and left guard Andy Levitre after placing center/guard Trevor Robinson on the reserve/retired list on Monday.
The Falcons also lost Hugh Thornton to retirement over the offseason.
Both had NFL experience and were signed to minor make-good contracts. The Falcons also lost starting right guard Chris Chester to retirement.
Wes Schweitzer and Ben Garland are set to battle to replace Chester and neither has started an NFL game.
Robinson was excused from the offseason program to deal with a distressed family issue.
Robinson, 27, who played at Notre Dame, started seven games with Cincinnati (2012) and 14 with San Diego (2014-15) as a center.
Thornton, 25, signed March 21 after playing in 37 games and making 32 starts for the Indianapolis Colts after he was drafted in the third round of the 2013 draft.
Thornton, who played at Illinois, retired in May.
The Falcons signed Cornelius Edison, who played in six games with Chicago, but has no NFL starts.
The Falcons drafted Sean Harlow in the fourth round and signed undrafted centers Travis Averill and Cam Keizur. They also added guard Marquis Lucas, who's spent time with Buffalo and Minnesota.
The Falcons are converting Harlow, who played tackle at Oregon State, to guard.
With most of the 90-man rosters packed with players for training camp, there are no highly touted prospects out on the street with one exception. Former New York center Nick Mangold, a seven-time Pro Bowler with the Jets was released over the offseason. He's played in 164 games.
He missed eight games last season with an ankle injury. He visited with Baltimore in April.
DEPTH CHART: Here's the projected depth chart heading in to training camp:
OFFENSE
WR 11 Julio Jones, 14 Justin Hardy, 19 Andre Roberts, 1 Reggie Davis, 17 Marvin Hall
LT 70 Jake Matthews, 66 Kevin Graf, 79 Will Freeman
LG 67 Andy Levitre, 64 Sean Harlow, 72 Cornelius Edison
C 51 Alex Mack, 63 Ben Garland, 61 Travis Averill, 62 Cam Keizur
RG [71 Wes Schweitzer, 63 Ben Garland], 69 Marquis Lucas
RT 73 Ryan Schraeder, 76 Daniel Brunskill, 75 Andreas Knappe
TE 81 Austin Hooper, 80 Levine Toilolo, 82 Joshua Perkins, 86 D.J. Tialavea, 85 Eric Saubert, 49 Darion Griswold
WR 12 Mohamed Sanu, 18 Taylor Gabriel, 13 Devin Fuller, 15 Nick Williams, 16 Anthony Dable, 87 Deante Burton, 7 Josh Magee
QB 2 Matt Ryan, 8 Matt Schaub, 4 Matt Simms, 4 Alek Torgersen
RB 24 Devonta Freeman, 26 Tevin Coleman, 28 Terron Ward, 38 Brian Hill, 35 B.J. Daniels
FB 40 Derrick Coleman, 39 Tyler Renew
DEFENSE
DE 99 Adrian Clayborn, 98 Takkarist McKinley, 96 Martin Ifedi
DT 92 Dontari Poe, 77 Ra’Shede Hageman, 92 Joe Vellano
DT 97 Grady Jarrett, 91 Courtney Upshaw, 74 Taniela Tupou
DE 44 Vic Beasley Jr., 95 Jack Crawford, 90 Derrick Shelby, 93 Chris Odom
SLB 59 DeVondre Campbell, 44 Vic Beasley Jr., 50 Brooks Reed, Jack Lynn
LB 45 Deion Jones, 53 LaRoy Reynolds, 52 Josh Keyes
WLB 36 Kemal Ishmael, 42 Duke Riley, 56 Jermaine Grace, 55 J'Terius Jones
CB 23 Robert Alford, 29 C.J. Goodwin, 25 Akeem King, 39 Janor Jones, 38 Taylor Reynolds
NB 34 Brian Poole, 33 Blidi-Wreh-Wilson, 27 Damontae Kazee
CB 21 Desmond Trufant, 32 Jalen Collins, 30 Deji Olatoye, 41 Quincy Mauger
S 37 Ricardo Allen, 20 Sharrod Neasman, 35 Marcelis Branch
S 22 Keanu Neal, 36 Kemal Ishmael, 48 Jordan Moore, 49 Deron Washington
SPECIALISTS
K 3 Matt Bryant, 6 Mike Meyer
KO 5 Matt Bosher
P 5 Matt Bosher
KR 19 Andre Roberts, 14 Justin Hardy, 13 Devin Fuller, 38 Brian Hill
PR 19 Andre Roberts, 14 Justin Hardy, 13 Devin Fuller, 18 Taylor Gabriel
LS 47 Josh Harris
H 5 Matt Bosher
THE FALCONS 2017 DRAFT
MUST READ PROFILE: Falcons top pick McKinley makes name for himself
2017 Falcons report card: Falcons earn a B-plus
NFC Champs add a pass rusher, quality depth
1st rounder: Meet defensive end Takkarist McKinley
3rd rounder: Meet linebacker Duke Riley
4th rounder: Meet offensive guard Sean Harlow
5th rounder: Meet defensive back Damontae Kazee
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