Beth Lindop believes that Liverpool should prioritise signing a centre-back amid links to striker Alexander Isak. (1:31)Open Extended ReactionsLiverpool have seen a bid for striker Alexander Isak rejected by Newcastle United, sources told ESPN, with the offer well below his £150 million ($197m) asking price. A source told ESPN that Liverpool's offer was worth up to £110m ($145m). ESPN previously reported that Liverpool were interested in Isak despite signing striker Hugo Ekitike from Eintracht Frankfurt in a deal worth up to £79m ($105m). Meanwhile, Isak continues to be absent from Newcastle's preseason.