We discuss how the vacuum model of Celenza and Shakin with a squeezed gluon
condensate can explain the existence of an infrared singular gluon propaga
tor frequently used in calculations within the global color model. In parti
cular, it reproduces a recently proposed QCD-motivated model where low ener
gy chiral parameters were computed as a function of a dynamically generated
gluon mass. We show how the strength of the confining interaction of this
gluon propagator and the value of the physical gluon condensate may be conn
ected.