Hopefully the formatting won't be all goofy.
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Starters in Bold, Rookie Draft picks and UDFAs in Red, Veterans first year in Dallas in Blue. EDIT: Sorry the red and blue don't work here.
Yes, I do know Tony is going to be the starter. Hence why his name is first.
QB (3)
9 - Tony Romo, UDFA 2003
4 - Dak Prescott, 4th, 2016
3 - Mark Sanchez, FA 2016
RB (4)
21 - Ezekiel Elliott, 1st 2016
46 - Alfred Morris, FA 2016
25 - Lance Dunbar, UDFA 2012
34 - Darius Jackson, 6th 2016
FB (2)
41 - Keith Smith, UDFA 2014
45 - Rod Smith, FA 2015
TE (3)
82 - Jason Witten, 3rd 2003
89 - Gavin Escobar, 2nd 2013
87 - Geoff Swaim, 7th 2015
WR (5)
88 - Dez Bryant, 1st 2010
83 - Terence Williams, 3rd 2013
17 - Brice Butler, FA, 2015
11 - Cole Beasley, UDFA 2012
13 - Lucky Whitehead, UDFA 2015
C (1)
72 - Travis Frederick, 1st 2013
G (4)
70 - Zack Martin, 1st 2014
71 - La'El Collins, UDFA 2015
65 - Ronald Leary, UDFA 2012
73 - Joe Looney, FA, 2016
T (3)
77 -Tyron Smith, 1st 2011
68 - Doug Free, 4th 2007
79 - Chaz Green 3rd, 2014
DE (4)
95 - David Irving, FA 2015
93 - Benson Mayowa, FA, 2016
75 - Charles Tapper, 4th 2016
58 - Jack Crawford, UDFA 2012
DT (4)
92 - Cedric Thornton, FA 2016
98 - Tyrone Crawford, 3rd 2012
96 - Maliek Collins, 3rd, 2016
97 - Terrell McClain, FA 2014
LB (7)
50 - Sean Lee, 2nd 2010
59 - Anthony Hitchens, 4th 2014
51 - Kyle Wilber, 4th 2012
56 - Justin Durant, FA 2016
57 - Damien Wilson, 4th 2015
52 - Andrew Gachkar, FA 2015
53 - Mark Nzeocha, 7th 2015
CB (5)
39 - Brandon Carr, FA 2012
24 - Morris Claiborne, 1st 2012
32 - Orlando Scandrick, 5th 2008
30 - Anthony Brown, 6th 2016
23 - Dax Swanson, UDFA 2016
S (5)
31 - Byron Jones, 1st 2015
40 - Barry Church, UDFA 2010
27 -JJ Wilcox, 3rd 2013
38 - Jeff Heath, UDFA 2013
35 - Kavon Frazier, 6th 2016
K... 5 - Dan Bailey, UDFA 2011
P...6 - Chris Jones, UDFA 2011
LS...91 - L. P. Ladouceur, UDFA 2005
Reserve/Suspended
90 - DeMarcus Lawrence, 2nd 2014 (Will be back)
Reserve/Did Not Report
94 - Randy Gregory, 2nd 2015 (Will be back)
55 - Rolando McClain, trade 2014 (Will NOT be back, so relax.)
Reserve NFI
20 - Darren McFadden, FA 2015 (50/50 Will Be Back)
Active PUP
84 - James Hanna, 6th 2012 (Will be back)
Active NFI
54 - Jaylon Smith, 2nd 2016 (50/50 he plays this year)
Injured Reserve/Ineligible to Return
17 - Kellen Moore, FA 2015
26 - Josh Thomas, FA 2016
78 - Cameron Bradfield, FA 2016
Practice Squad (As of Right Now)
99- Ryan Russell, DE, 5th 2015
80 - Rico Gathers TE, 6th 2016
16 - Vince Mayle, WR, UDFA 2015
81 - Andy Jones, WR, UDFA 2016
47 - Deon King, LB, UDFA 2016
86 - Austin Trayler, TE, UDFA 2016
60 - Jake Brendel, C, UDFA 2016
??? - Zach Moore, DE, FA 2016 (not yet confirmed by team, but announced by the player)
Breakdown of the 53 Active Roster (And Who Likely Takes a Spot Away If They Come Back)
Draft Picks
1st Round (7)...Ezekiel Elliott, Byron Jones, Zack Martin, Travis Frederick, Morris Claiborne, Tyron Smith, Dez Bryant
2nd Round (2)...Gavin Escobar, Sean Lee (Jaylon Smith, Randy Gregory, DeMarcus Lawrence)
3rd Round (6)...Maliek Collins, JJ Wilcox, Chaz Green, Terrance Williams, Tyrone Crowford, Jason Witten
4th Round (6)...Dak Prescott, Charles Tapper, Damien Wilson, Anthony Hitchens, Kyle Wilber, Doug Free
5th Round (1)...Orlando Scandrick
6th Round (3)...Darius Jackson, Kavon Frazier, Anthony Brown (James Hanna)
7th Round (2)...Mark Nzeocha, Geoff Swaim
Total via the Draft (27)
Trade (0)
UDFAs
2016 (1)...Dax Swanson
2015 (2)...La'El Collins, Lucky Whitehead
2014 (1)...Keith Smith
2013 (1)...Jeff Heath
2012 (4)...Jack Crawford, Ronald Leary, Cole Beasley, Lance Dunbar
2011 (2)...Dan Bailey, Chris Jones
2010 (1)...Barry Church
2005 (1)...L.P. Ladouceur
2003 (1)...Tony Romo
Total UDFAs (14)
Free Agency
2016 (6)...Cedric Thornton, Joe Looney, Mark Sanchez, Alfred Morris, Benson Mayowa, Justin Durant
2015 (4)...Brice Butler, Anthony Gachkar, David Irving, Rod Smith (Darren McFadden)
2014 (1)...Terrell McClain
2012 (1)...Brandon Carr
Total Free Agents (12)
Holdovers from the Bill Parcells Era (3)
Tony Romo, Jason Witten, L. P. Ladouceur
Holdovers from the Wade Phillips Era (5)
Doug Free, Orlando Scandrick, Barry Church, Sean Lee, Dez Bryant