Sources - Cowboys' Vander Esch's injury unrelated to neck surgery - ESPN
Leighton Vander Esch is again the linchpin of the Cowboys defense
MAN ON A MISSION: Cowboys linebacker Leighton Vander Esch battling for starting role
Leighton Vander Esch - NFL News, Rumors, & Updates
Leighton Vander Esch to Undergo Neck Surgery, Out for Rest of Season – NBC 5 Dallas-Fort Worth
Breaking: Cowboys decline Leighton Vander Esch's fifth-year option
Leighton Vander Esch Stats, News and Video - OLB
Cowboys score twice on defense in 38-3 blowout of Patriots, Belichick's worst loss - The San Diego Union-Tribune
Leighton Vander Esch - NFL News, Rumors, & Updates
Leighton Vander Esch: Stats & Injury News