After months of speculation, Alisson has finally completed a move to Liverpool for a reported fee worth £66.8 million - a world record for a goalkeeper.The Roma shot-stopper was Liverpool’s top transfer target for the summer and the Reds have beaten off interest from Chelsea and Real Madrid to get access to the player, who has penned a "long-term" contract with the club on Thursday.The 25-year-old made 37 Serie A appearances for Roma in the 2017-18 season, where he kept 17 clean sheets and also helped them reach the semi-finals of the UEFA Champions League before losing out to Liverpool 7-6 on aggregate."In terms of my life and my career, it's a huge step for me being part of this club and this family," said Allison."I'm really happy, it's a dream come true to wear such a prestigious shirt for a club of this size that is used to always winning.”Here's how Twitter reacted to the sensational announcement.Welcome to @LFC, @Alissonbecker. 🔴https://t.co/t4msWAm2sU pic.twitter.com/2xefw3zIFU— Liverpool FC (@LFC) July 19, 2018🔴 Alisson: £56m🔵 Kyle Walker: £45m🔴 Virgil van Dijk: £75m🔵 Aymeric Laporte: £57m🔵 Benjamin Mendy: £52mThe world's most expensive back four in history belongs to two clubs. 🤑 pic.twitter.com/KMsbtbSc53— Squawka News (@SquawkaNews) July 19, 2018🔴 Liverpool In The Last 7 Months Have Signed:✅ Most Expensive Defender Ever: 🇳🇱 Virgil van Dijk - £75m.✅ Most Expensive Goalkeeper Ever:🇧🇷 Alisson Becker - £66m.😱 pic.twitter.com/Ddvcecdgjs— SPORF (@Sporf) July 19, 2018Every Liverpool fan feels the same right now, Alisson. pic.twitter.com/errbStTOTU— Matt (@FalseFirmino) July 19, 2018When salah sees alisson at melwood pic.twitter.com/xp6CH0ywax— MonsterAmongMen (@uddin8989) July 19, 2018Never thought signing a goalkeeper could be so exciting. Massive statement of intent. One of the most important signings the club have made in years. Welcome, @Alissonbecker.— Joel Rabinowitz (@joel_archie) July 19, 2018I didn’t even realise Chris Hemsworth was such a great goalkeeper! 😵 #Alisson pic.twitter.com/TxdncxKiKq— Dixie Meekings (@Dixie_84) July 19, 2018If Alisson is worth 67m then what is DDG or Neuer worth? Decent signing for Liverpool but that much money after one good season is ridiculous.— ‏ً (@SimplyCosta) July 19, 2018Hilarious how no one knew who Alisson was 6 months ago and now you're all experts and he's worth 60 Mil🤔— Goldenboy (@CharlieGreen96) July 19, 2018So Liverpool just signed a goal keeper for €75 million who conceeded 7 goals against them a couple of months ago 😂👌#Alisson— United Football (@unitedkeano) July 19, 2018so basically Liverpool spent 100m on the pair of Alisson and Salah from Roma. What a steal. If I were LFC, I'd give them 20m and Lovren as a present 😉— tejbir singh (@tejbir08) July 19, 2018Alisson needs to get rid of that acne and he'd have snatched Karius best looking gk title along with his starting spot.— Alisson Wonderland (@NotStanding) July 19, 2018Alisson looking good 👌🏼 pic.twitter.com/iD0DAnpAgz— a (@lfcalexx) July 19, 2018Upgrading from Karius to Alisson is something else altogether— dylan (@dylanokeeffe_) July 19, 2018Trump's Wall 🇺🇸💰 Estimated Cost: $26 Billion🇲🇽 Across the Mexico BorderKlopp's Wall 🧤💷 Cost: £67 Million🇧🇷 Alisson Becker pic.twitter.com/3P0sElfnBI— LFC Transfer Room (@LFCTransferRoom) July 19, 2018If you have a wife or girlfriend called Alisson then look after her . She’s a keeper— Chris Prodromou (@chrisprodromou) July 19, 2018Mo “what are you waiting for”Alisson “on my way bro” pic.twitter.com/iOhfXn5jzG— M_Gerrard (@MGNIN9) July 19, 2018I was wondering what was taking so long to announce Alisson. The guy has taken enough pics and videos to announce him 50 times over.— Denis Spahiu (@denis_spahiu) July 19, 2018I've never trusted Brazilian keepers but fuck me I'm all in on this Alisson. After watching Mignolet & Karius I'm desperate for him to be the answer!— David (@DavidHanson11) July 19, 2018When alisson sees John Achterberg at liverpool pic.twitter.com/3MUh7yax2D— MonsterAmongMen (@uddin8989) July 19, 2018