Arsenal hero Martin Keown says his old club should sign Genk's central defensive pair.
He was impressed with Colombian duo Carlos Cuesta and Jhon Lucumi during their Champions League defeat to Liverpool in Belgium.
He told BT Sport following Liverpool's 4-1 win: "(Cuesta) looks some player by the way, both Colombian central defenders look pretty decent.
"If I was an Arsenal scout - and never have been, never been asked to comment ever as a former player on prospective purchases - these two are not bad, I can tell you."
Arsenal are also reportedly weighing up a cut-price swoop for Red Bull Leipzig defender Dayot Upamecano in January.
