  Top partners from a new strong sector can be discovered soon, at the 8 TeV
LHC, by analyzing their single production, which exhibits a large enhancement
in the cross section compared to the analogous productions of bottom partners
and exotic quarks. We analyze the subsequent decay of the top partners into a
125 GeV Higgs. This channel proves to be very promising for both the discovery
of top partners and a test of the Higgs sector. For a reference value
$\lambda_{\tilde{T}}=3$ of the Higgs coupling to the top partner, we could have
a discovery (observation) at the 8 TeV LHC, with 30 fb$^{-1}$, for top partner
masses up to 760 (890) GeV. If the LHC and Tevatron excesses near 125 GeV are
really due to a composite Higgs, naturalness arguments demand top partners
below $\sim 1$ TeV. Our results highlight thus that the 8 TeV LHC already has a
large sensitivity on probing the composite Higgs hypothesis. The LHC reach is
even wider at $\sqrt{s}=14$ TeV. With $\lambda_{\tilde{T}}=3$ the LHC with 100
fb$^{-1}$ can observe (at 5$\sigma$) a Higgs from a top partner decay for
masses of this latter up to $\simeq 1450$ GeV. In the case the top partner was
as light as $\simeq 500$ GeV, the 14 TeV LHC would be sensitive to the measure
of the $\lambda_{\tilde{T}}$ coupling in basically the full range
$\lambda_{\tilde{T}}>1$ predicted by the theory.
