Bayern Munich kicked off their Bundesliga title defence with an astonishing 8-0 victory against Schalke at the Allianz Arena. The Bavarian giants were rampant on the night and made a massive statement of intent in their first game of the season, as the away side was brushed aside.Serge Gnabry stole the show with a brilliant hat-trick, while new signing Leroy Sane also made an impression with a fantastic competitive debut for the club. The former Manchester City winger recorded a goal and two assists and showed glimpses of why the Bavarian giants were desperate to sign him this summer.Not a bad way to start😬😎⚽ #Bundesliga @FCBayern pic.twitter.com/ODM2rNeEm3— Robert Lewandowski (@lewy_official) September 18, 2020Two assists.One goal.The perfect debut for Leroy Sane at Bayern Munich ⚡ pic.twitter.com/oAoJ7x4fC8— B/R Football (@brfootball) September 18, 2020The 2020-21 Bundesliga season is under way, and it's begun with an 8-0 win for Bayern Munich 😳https://t.co/Te1mEQDgVA pic.twitter.com/iEb75OMEBu— BBC Sport (@BBCSport) September 18, 2020The legacy lives on! 7️⃣+🔟 #FCBS04 #MiaSanMia @ArjenRobben @FranckRibery @LeroySane19 @SergeGnabry pic.twitter.com/JkqvMIycQq— FC Bayern München (@FCBayern) September 18, 2020Aside from Sane and Gnabry, Robert Lewandowski, Leon Goretzka, Thomas Muller got their names on the scoresheet, while substitute Jamal Musiala also scored a goal for Bayern Munich. English teenager Jamal Musiala is Bayern Munich's youngest-ever Bundesliga goalscorer 👶The 17-year-old is also the fifth youngest scorer in Bundesliga history! 🙌 pic.twitter.com/e0odcO3adX— Goal (@goal) September 18, 2020Bayern Munich to draw Manchester United in the Champions League is what the world needs.— Miguel (@ftblmiguel) September 18, 2020Bayern Munich scoring 8 goals in a Bundesliga game? Thankfully they could never do that in a Champions League knockout stage game.— TC. (@totalcristiano) September 18, 2020Hansi Flick's and co pulled no punches and put a hapless Schalke side to the sword, as they recorded the biggest opening day victory in Bundesliga history. The Bavarian giants are coming on the back of a treble winning season and will look to have another successful campaign in 2020-21.Bayern Munich are still in the market for a handful of additions, as they look to fine tune their squad and compete on all fronts again. Thiago Alcantara joined Liverpool yesterday and it remains to be seen if he is replaced by the club.Thiago just left Bayern Munich today and they already found his replacement with Joshua Kimmich loooool this club is a different breed— Miguel (@ftblmiguel) September 18, 2020Sevilla Watching this Bayern Match and Realizing they have to play Bayern Munich in the Super Cup In 1 week’s Time😬 pic.twitter.com/5GpggkRtRn— Smokie  (@TaliascottP) September 18, 2020Barcelona fans watching Bayern Munich destroy another team by 8 goals pic.twitter.com/YitdunEgPF— Mr We$t (@musaxv) September 18, 2020Good N8! 👊 #FCBS04 #FCBayern pic.twitter.com/Y1flX6lgGL— FC Bayern München (@FCBayern) September 18, 2020Everyone’s defence in 2020 when they play Bayern Munich pic.twitter.com/kQ9C9Jk6KR— Blauer 🚀 #BaleBack (@BlauerTHFC) September 18, 2020👀 Congratulations to @FCBayern on winning the 2020/21 Bundesliga.😅 You'd h8 to be the rest of Bundesliga right now. pic.twitter.com/SutlcV2WR7— SPORF (@Sporf) September 18, 2020Bayern Munich 8 x 0 Schalke 04everyone watching: pic.twitter.com/zCxL2DYzu6— Fut433 (@Fut16531031) September 18, 2020Bayern Munich whenever they play: pic.twitter.com/VPFlbZS8iP— ً (@asens11o) September 18, 2020Sancho just come United you ain’t winning the bundesliga 🤣 Bayern Munich currently 8-0 up 😳— Saeed ✨ (@Realist_187) September 18, 2020Congratulations to Bayern Munich on winning the league— Aidan Walsh 🔰 (@AidanWalshMUFC) September 18, 2020Bayern Munich marcando 8️⃣ goles😂 pic.twitter.com/dO8Zsov3Hs— Real Madrid C.F.⚽ (@rmadridsite) September 18, 2020In 37 games under Hansi Flick, Bayern Munich have:scored 124 goals (3.4 per game)conceded 26 goals (0.7 per game)scored 8 goals in a game twicescored 6 goals three timesscored 5 goals three timesscored 4 goals nine timesnever been beaten by more than one goal pic.twitter.com/06ha9GKa15— The Tactical Times (@Tactical_Times) September 18, 2020Sergino Dest and Ivan Perisic continue to be linked with the Bavarian giants, with Flick eager to add news players to his squad in the coming weeks.Also Read: 5 Jadon Sancho alternatives for Manchester United