  We explore the possibility that the left-handed third generation quark
doublet $q_L$ is fully composite in composite Higgs models. The signature of
the model is the presence of broad spin-1 resonances strongly interacting with
the third generation quark doublet $q_L$. In this case, The $t\bar{t}$
resonance search channel is comparable in sensitivity to the di-lepton channel.
In addition, the same-sign di-lepton channel in the $t\bar{t}\rho$ associate
production can probe the large $g_\rho$ parameter space and complementary to
the Drell-Yan production channels.
