Arsenal ‘have to win a trophy’ this season according to club legend Martin Keown.The former Gunners defender has warned Mikel Arteta he could face criticism from fans if their silverware drought continues.Arteta has been warned he must win a trophy with Arsenal this seasonGettyThe Gunners have not claimed silverware since lifting the FA Cup in 2020Getty ImagesArteta’s only major trophy in charge of the club came back in 2020 as they lifted the FA Cup.He has since guided Arsenal back into the Champions League along with three consecutive second place finishes in the league.However, it is now 21 years since the last of their 13 league titles.Keown believes it is now ‘obvious’ his old side need to win a trophy this term.He told White & Jordan: “I know it’s an obvious thing, they have to win a trophy this season.“I don’t know what the consequence of that will be if he doesn’t. But they have to win some sort of trophy.“I do feel that there has been progress. Two involvements in the Champions League, got to the semi-finals last year, so we know that’s good progress. But no trophies.“You’re seeing Newcastle, (Crystal) Palace winning trophies for the first time in many years. Arsenal need to do the same.”Newcastle ended their 70-year wait for a major domestic honour by winning the Carabao Cup last term.Meanwhile, Crystal Palace’s FA Cup triumph in May secured the first major trophy in their history.talkSPORTKeown claims Arsenal fans ‘don’t want any excuses’ for not winning a trophy[/caption]The Gunners beat Manchester United in their Premier League opener on SundayGetty‘No excuses’ for ArtetaKeown continued: “They still need to retain that challenge in the Premier League. They’re in the mix.“They’re definitely going to challenge this season. But the Arsenal fans will cry out for a trophy.“I don’t think we’ve reached the stage yet of the Arsene Wenger years, where I felt like he was almost like an individual stood at a fruit machine, knew it was going to pay out, and wouldn’t remove himself from the machine until it did. Because eventually, he did actually win a trophy.“I don’t think we’ve reached that stage. He’s still progressing, large parts of last season without a striker.“We don’t want any excuses anymore. Now he just needs to be positive. You got lucky a little bit yesterday, but that’s good. You need luck if you’re going to be champions. One step at a time.”Keown himself won 10 trophies across two spells with the Gunners as a player. Those honours included three league titles, three FA Cups and the Cup Winners’ Cup.Arteta’s side made a winning start to the new Premier League season on Sunday.Riccardo Calafiori’s first half header secured all three points away to Manchester United.They will look to continue their title challenge at home to Leeds on Saturday evening.