By Tom Victor Leandro Trossard has sent a straightforward message after opting to celebrate his goal for Arsenal against former club Brighton. Belgian forward Trossard left the Amex Stadium for North London in January 2023 and endured a tough game against his old employers back in May. He had a better time of it this time, though, rounding off a comfortable win for the Gunners on the south coast. There were boos for the 29-year-old when he entered the fray as a 64th-minute substitute for Gabriel Jesus. While some players choose not to celebrate out of respect for their former employers, there …