Lionel Messi showed his class once again as Barcelona secured a stunning 4-0 victory over Athletic Bilbao to lift the Copa del Rey title. The Catalan giants came into this final under a lot of pressure after their loss against Real Madrid in the Clasico last weekend. However, a supreme second-half performance from Lionel Messi and Co ensured that Ronald Koeman would win his first major trophy as Barcelona manager.After a well contested first half which saw Athletic Bilbao defend bravely, Barcelona started off the second half with verve and vigor looking to break open the opposition defense. The lead finally came in the 60th minute when some superb interplay between Lionel Messi and Frenkie de Jong set up Antoine Griezmann who made no mistake with his finish.Just 3 minutes later, Frenkie de Jong was heavily involved once again as this time he stooped to score a simple headed goal from a Jordi Alba cross. Lionel Messi then took over as he scored a brilliant brace to put the tie beyond the reach of the Basque side.The Argentine maestro scored 2 stunning goals in the 68th and 72nd minute to lift his first Copa del Rey title as the Barcelona captain. Speaking to Barca TV after the match, Lionel Messi said:"It's very special to be the captain of this club. It's a very special Copa for me because I'm able to lift it [myself]."Not being able to celebrate it with our fans is a pity. The situation is what we have to live with. It's a shame. The Copas are always special and the fans enjoy them a lot."After winning the Copa del Rey title, Lionel Messi immediately turned his attention to the La Liga title race and admitted that Barcelona did not start the season well:"We found it difficult to get started in the first half of the season. We dropped points out of innocence. We've been getting stronger, very good, and we're in the title race. The other day, unfortunately, we weren't able to get a good result in the Clasico."Barcelona manager Ronald Koeman had similar words of encouragement for his players and vowed to fight for the La Liga title. Speaking after the match to Marca, Koeman said:“We are very happy and we deserved to win at least one title this season and we will fight for La Liga until the last game.“The club deserves it. It is a happy day for all Catalans. It is a deserved success. We have made changes to the team this year, but the players have delivered.”If Lionel Messi continues playing like this, Barcelona might very well end up winning the domestic double in Ronald Koeman's first season in charge of the club. Without further ado, let us take a look at the:Best Tweets from Athletic Bilbao 0-4 Barcelona (Copa del Rey final)FULL TIME!🏆 𝘾𝙊𝙋𝘼 𝘿𝙀𝙇 𝙍𝙀𝙔 𝘾𝙃𝘼𝙈𝙋𝙄𝙊𝙉𝙎❗ pic.twitter.com/aK0Cb4XDMI— FC Barcelona (@FCBarcelona) April 17, 2021🏆🆙 RAISE IT HIGH! pic.twitter.com/QqqeQ8aN9S— FC Barcelona (@FCBarcelona) April 17, 2021FEELS GOOOOOOD! 🙌 pic.twitter.com/Lti0GJzuOs— FC Barcelona (@FCBarcelona) April 17, 2021🏆 A trophy forged at 𝘓𝘢 𝘔𝘢𝘴𝘪𝘢 💙❤️ pic.twitter.com/EH77j9LwDK— FC Barcelona (@FCBarcelona) April 17, 2021Congratulations to @FCBarcelona and their fans for their deserved Copa del Rey 2021 win.#RealMadrid— Real Madrid C.F. 🇬🇧🇺🇸 (@realmadriden) April 17, 2021❝It's really strange to celebrate a title with no fans.❞ — Leo #Messi pic.twitter.com/76RoQ5g9le— FC Barcelona (@FCBarcelona) April 18, 2021A first trophy for @RonaldKoeman as coach of @FCBarcelona as they win the Copa del Rey. What a great job he’s doing, during what’s been a very difficult time for the club. Well played. Visca el Barça.— Gary Lineker 💙 (@GaryLineker) April 17, 2021Real Madrid.Barcelona.All square 🤝 pic.twitter.com/e52NkGcfDQ— Goal (@goal) April 17, 2021Pedri's 1st trophy with Barcelona ❤️Lionel Messi's 35th trophy with Barcelona ❤️ pic.twitter.com/iOgJtBevfQ— ESPN FC (@ESPNFC) April 17, 2021I don’t think I have ever seen anything like this between teammates towards one as Barcelona’s with Messi pic.twitter.com/3GQUaAOxl2— Tancredi Palmeri (@tancredipalmeri) April 17, 2021LOCURAAA!! @FCBarcelona_cat CaMPIONS! @EsportsRAC1 pic.twitter.com/AwiDbBbt4l— Gerard Romero (@gerardromero) April 17, 2021Barcelona Fans and Messi Fans on twitter this night pic.twitter.com/3R8zyejHSh— Pakthehub (@pakthehub) April 17, 2021🗣️ Laporta: "Messi is deeply rooted at Barcelona. I'm convinced that he wants to stay. He's the best player in the world." pic.twitter.com/apN5ppW9YH— infosfcb (@infosfcb) April 17, 2021Copa Del Rey Champions for the 31st time! 😍#CopaDelRey #DeJong #Messi #Barca #Barcelona #AthleticBarca pic.twitter.com/EBvREt4FXu— Sportskeeda Football (@skworldfootball) April 17, 2021Lionel Messi had a magical night for BarcelonaLeo #Messi: 30+ goals for 13 straight seasons! 🐐! pic.twitter.com/iAY7SHZUc8— FC Barcelona (@FCBarcelona) April 17, 2021Oh I say. Yet another wonder goal from the incomparable Lionel Messi. 🐐 https://t.co/YHNFz5e2p9— Gary Lineker 💙 (@GaryLineker) April 17, 2021MESSI IN THE CUP FINAL WHAT A GOALLLLLLL 🤯🤯🤯🔥🔥🔥🔥 pic.twitter.com/cMBF6EyTBX— mx (@MessiMX10i) April 17, 2021Messi nowadays plays as Messi, Xavi and Iniesta at the same time.— Rafael Hernández (@RafaelH117) April 17, 2021📚How to win trophies - By Leo Messi 🤓 pic.twitter.com/e7Ni3fUKsz— 433 (@433) April 17, 2021This view of Messi’s goal.. INSANE pic.twitter.com/2MNAELbKnq— J. (@MessiIizer) April 17, 2021Lionel Messi - The greatest player to ever kick a football. I rest my case.— Mod (@CFCMod_) April 17, 2021whys Messi in my garden at this time? pic.twitter.com/wCHM4ZdoH8— #FSGOUT Harrison Browne 🔴⚪ (@HB_JFT96) April 17, 2021When Messi shaves his beard the game is already over before it even starts. 🐐🥵 pic.twitter.com/Hgo8cgAZL7— Kacper 🇵🇱 (@GhostlyKacper) April 18, 2021“I played with Leo Messi” will be the highlight of their careers and they know it.We will never see a player like him again. https://t.co/Z6LIgRohLU— 🦖 𝔾𝕦𝕟𝕟𝕖𝕣𝕤𝕠𝕟 🦋 (@FuTlurker) April 18, 2021Yeah, Messi is not going anywhere :’) pic.twitter.com/EzmuhuwKY0— Elena ∞ (@Barcelenaa) April 18, 20212009 🏆2012 🏆2015 🏆2016 🏆2017 🏆2018 🏆2021 🏆Messi lifts the CDR for the Seventh time.#CopaDelReyFinal #CopaDelRey #BarcaBilbao #BarcaCampeon #leomessi #Messi pic.twitter.com/NMFdxnxLx7— Payel Sarkar (@PayelSarkarSupu) April 18, 2021Messi wins the 35th trophy of his career, breaking Ryan Giggs’ record of most titles for a single club. La Liga 🏆🏆🏆🏆🏆🏆🏆🏆🏆🏆 Copa 🏆🏆🏆🏆🏆🏆🏆Supercopa 🏆🏆🏆🏆🏆🏆🏆🏆UCL 🏆🏆🏆🏆UEFA Super Cup 🏆🏆🏆FIFA Club WC 🏆🏆🏆 pic.twitter.com/1rsPhM9Daq— FootballFunnys (@FootballFunnnys) April 17, 2021