Bruno Guimaraes silenced Sunderland at the Stadium of Light – and rubbed salt in their wounds following Arsenal’s 2-0 win.The 28-year-old opened his account for the Gunners in spectacular fashion as he proved key in his new side returning to the top of the Premier League table.Guimaraes was instrumental off the bench to help Arsenal beat SunderlandGettyGuimaraes was quick to poke fun at Sunderland fans by gesturing they are a small clubAFPGuimaraes, who replaced Myles Lewis-Skelly at half-time, curled home an exquisite strike in the 58th minute – just two minutes after David Raya saved Enzo Le Fee’s penalty.What reception did Bruno Guimaraes get at Sunderland?It was a dream night for the Brazilian midfielder, who was heavily booed by the Black Cats faithful whenever he touched the ball having captained their arch-rivals Newcastle.Those jeers got even louder when Guimaraes proceeded to do a ‘small’ gesture with his hands towards the home supporters.He then cupped his ears to take in his role of being the pantomime villain as a plastic cup could be seen hurled in his direction.The abuse started prior to kick-off in Wearside, with one fan heard calling him a ‘fat rat’ as he made his way into the stadium.How has Bruno Guimaraes trolled Sunderland fans?And Guimaraes was quick to reference that jibe as he posted a series of posts on his Instagram story to poke fun at the Mackems.In one upload, Guimaraes uploaded a trio of pics, showing him scoring and celebrating.He captioned the post: “They know what they are [small hand emoji]!“The fat rat wished you a nice weekend [zany face emoji].”And the ex-Lyon star also showed his loyalties to Newcastle, by sharing former teammate Joelinton’s post.Guimaraes wasted no time in trolling Black Cats fans on social media after Arsenal’s winInstagram: @brunoguimaraesWith an image showing Guimaraes celebrating, accompanied to music by Magpies fan Sam Fender, the caption read: “Once a Geordie, always a Geordie.”Guimaraes, who captained the Toon to Carabao Cup glory in 2025, stressed Newcastle will always hold a special place in his heart in his post-match interview.Commenting on his first Arsenal goal, he told TNT Sports: “It’s unbelievable, I feel very good.“Everyone knows I had a difficult start with injuries in a short time but I’m glad to be back, glad to play.“I scored a beautiful goal, it’s a beautiful moment for me and my family and I’m very happy.”He added: “A beautiful goal in a very good place.Brazilian star Guimaraes also re-shared this post from Newcastle star Joelinton“Everyone knows my past, I had an amazing history at Newcastle.“But now I’m trying to create a new history here and I’ve started in the right way.”Guimaraes has been limited to just four Arsenal appearances due to injury since joining in a £75million deal, with each of his outings coming from the bench.But he could make his first start in the club’s Carabao Cup third round tie away at Ipswich on Tuesday night.