  We derive constraints from flavor and LHC searches on charmphilic
contributions to the muon anomalous magnetic moment with a single leptoquark.
Only the scalar leptoquarks $S_1$ and $R_2$ are relevant for the present
analysis. We find that for $S_1$ some parameter space remains consistent at
$2\sigma$ with the Brookhaven National Laboratory measurement of the muon
$g-2$, under the assumption that the left-type coupling between the muon and
the charm quark is a free parameter. The surviving parameter space is, on the
other hand, going to be probed in its entirety at the LHC with 300/fb of
luminosity or less. All other possibilities are excluded by the LHC dimuon
search results in combination with several flavor bounds, which together
require one to introduce sizable couplings to the top quark to be evaded.
