Arsenal suffered a 2-0 loss to Manchester United in their second pre-season game of the summer. Bruno Fernandes and Jadon Sancho scored in the first half to seal the victory for the Red Devils in a jam-packed MetLife Stadium.Fernandes opened the scoring with a shot from 20 yards out, and was aided by a tame save from Aaron Ramsdale. The goalkeeper failed to get his weight behind the ball and palmed it into the goal.Sancho doubled their lead in the 37th minute by capitalizing on Gabriel's mistake. The Gunners defender failed to get his leg on a clearance at half line and put the Englishman through on goal. The former Borussia Dortmund star drove into the box and smashed it into the near post to make it 2-0.Arsenal fans were not pleased with Kai Havertz and Fabio Vieira in the game and were quick to voice their opinion on social media. Here are some of the tweets:Troll Football@TrollFootballArteta looking for Havertz transfer receipt pic.twitter.com/qtyaE1bUxL102201257Arteta looking for Havertz transfer receipt pic.twitter.com/qtyaE1bUxLkravmagaan@kravmagaanFabio Vieira will be my Rob Holding for this seasonFabio Vieira will be my Rob Holding for this seasonG Maybe@GilesMaybeFabio Vieira and Pepe should get in the bin.Fabio Vieira and Pepe should get in the bin.Oluochsenior@oluoch_mr@afcstuff Just don't want to see Fabio Vieira and kai Havert in Arsenal Squad.@afcstuff Just don't want to see Fabio Vieira and kai Havert in Arsenal Squad.Paddy Poch@TommyTookArteta's talent ID: £300k/w for Havertz at CM£150k/w and Henry's shirt for NketiahSpent £100m on City's leftoversFabio Vieira...Arteta's talent ID: £300k/w for Havertz at CM£150k/w and Henry's shirt for NketiahSpent £100m on City's leftoversFabio Vieira...Connor Humm@TikiTakaConnorAm I the only one concerned about Fabio Vieira? He ghosts every time I watch him.197170Am I the only one concerned about Fabio Vieira? He ghosts every time I watch him.Akash@Ak0320pHavertz does not work in that role …Just like Fabio Vieira didn’t …The quicker Arteta realises, the better Rice Ødegaard Partey22925Havertz does not work in that role …Just like Fabio Vieira didn’t …The quicker Arteta realises, the better Rice Ødegaard ParteyCasey Evans@Casey_Evans_MUTV commentary is hilarious there’s no objectivity at all, one just went ‘They’ve taken off Havertz’ and the other went ‘Yeah because he’s rubbish’8768835MUTV commentary is hilarious there’s no objectivity at all, one just went ‘They’ve taken off Havertz’ and the other went ‘Yeah because he’s rubbish’CarefreeLewisG🇪🇹@CarefreeLewisGArsenal asking Chelsea for the Havertz money back: pic.twitter.com/8OoJszjiyk2591364Arsenal asking Chelsea for the Havertz money back: pic.twitter.com/8OoJszjiykMooku@M4RZ0V3LLIKai Rooney has a higher ceiling than Kai Havertz15947Kai Rooney has a higher ceiling than Kai HavertzFrank 🧠🇳🇱@TenHagEraSomeone said this is Kai Havertz vs Manchester United pic.twitter.com/bRoCjVkwT23462468Someone said this is Kai Havertz vs Manchester United😭😭 pic.twitter.com/bRoCjVkwT2Vieira was initially named on the bench but replaced captain Martin Odegaard after the Norwegian picked up a knock in the warm-up.Arsenal lose penalty shootout to Manchester UnitedDespite the game ending 2-0 at full time, Arsenal and Manchester United played a penalty shootout at the end of the match. The two sides had agreed ahead of the game that it would be good practice for the players in the pre-season match.The Gunners ended up losing once again as Fabio Vieira sent his effort over the crossbar. The Portuguese star was the only player to miss his kick, and the Red Devils picked up a 5-3 win.Casemiro, Diogo Dalot, Victor Lindelof, Marcus Rashford and Christian Eriksen stepped up for Erik ten Hag's side and converted all their efforts. Martin Odegaard, Leandro Trossard and Jorginho scored for Mikel Arteta's side.