Liverpool's Alexander Isak and Florian Wirtz 'biggest disappointments' says Gary Neville after pair underwhelm in draw at Newcastle

Gary Neville called on Florian Wirtz and Alexander Isak to improve after a year of "being kind to" Liverpool's £200m+ duo, but said he had faith the pair would come good despite being their "biggest disappointments" at Newcastle. <p>Isak played the entire 90 minutes on his first return to St James' Park since becoming the Premier League's most expensive player last summer, though offered little more than Wirtz who was substituted just after the hour mark for Alexis Mac Allister.</p><p>Both had offered hope in pre-season of better times to come after encouraging performances in Liverpool's friendlies under new boss Andoni Iraola, but neither could transfer that optimism into Sunday's league opener at St James' Park.</p><widget id="4"></widget><p>Speaking on the <em>Gary Neville Podcast</em>, Neville said: "The big thing for Liverpool is they've got this quarter-of-a-billion-pound front two, Isak and Wirtz and bloody hell, we've been kind to them.</p><ul><li><a href="https://qrcode.skysports.com/TransfersSkySportsApp" target="_blank">Transfer Centre LIVE!</a>…