  A review of recent combinations of top-quark measurements performed at the
LHC, by the ATLAS and CMS collaborations, is provided. The typical uncertainty
categorisations, and their assumed correlation patterns are presented, together
with the results of the combinations of the top-quark pair and single top-quark
production cross sections, the top-quark mass, as well as of the $W$ boson
polarisation and the charge asymmetry in $t\bar t$ events.
