Rumor is that Liverpool are going to pay Luciano Vietto's release clause at Villareal:
http://liverpooloffside.sbnation.com/liverpool-fc-transfer-news/2015/5/31/8694159/luciano-vietto-release-clause-atletico-move-liverpool-arsenal-interest
If they can talk him into coming to Liverpool instead of fighting with Arsenal's strikers for time, getting him for less than £15M seems a lot better business than paying £20M for Lazar Markovic.
http://liverpooloffside.sbnation.com/liverpool-fc-transfer-news/2015/5/31/8694159/luciano-vietto-release-clause-atletico-move-liverpool-arsenal-interest
If they can talk him into coming to Liverpool instead of fighting with Arsenal's strikers for time, getting him for less than £15M seems a lot better business than paying £20M for Lazar Markovic.