Liverpool took time adjusting to life back in the Europa League but for the fourth time in six matches this season they came from behind to win 3-1 against LASK in Linz.It had been 2,682 days since they last appeared in UEFA's second-tier competition, having played in three Champions League finals and won one, and that adaptation to a new reality took a while to bed in.The Austrians had no such problem in the biggest game in their history as the visit of Manchester United in 2020, when they were hammed 5-0, happened behind closed doors because of the pandemic.They were so fired up they predictably took an early lead through Florian Flecker’s brilliantly-taken goal but once Jurgen Klopp’s side came to the realisation the Europa League will be just as tough a task as the competition favourites this season’s familiar trait emerged.Within the space of eight second-half minutes Darwin Nunez fired home a penalty and Luis Diaz converted from close range and late on substitute Mohamed Salah clinched Klopp’s 50th European victory, the most of any Anfield manager.Pre-match the German had insisted this was not a competition for handing out "opportunities" but then proceeded to name a completely different side from that which won at Wolves at the weekend.Not to say that it was weak with first-choice centre-backs Virgil van Dijk and Ibrahima Konate at the back and Diaz and Nunez up front but in between was the untried midfield of newest signing 21-year-old Ryan Gravenberch, on his first start, and Harvey Elliott (20) either side of the 30-year-old 'veteran' Wataru Endo who had played just 89 minutes for Klopp’s team since his own summer move.The real excitement was reserved for livewire winger Ben Doak, who became the club’s