Arsenal boss Arsene Wenger believes it could be several seasons before the London Stadium feels like home for West Ham.
The Hammers have won just two Premier League matches at their new home and sit 16th in the table - just one point above the relegation zone.
Arsenal travel to West Ham's London Stadium for the first time on Saturday and, referencing the Gunners' switch from Highbury in 2006, Wenger warned it will take time for Slaven Bilic's side to settle.
“It takes a few years, because you have to make memories and build a little history,” he said.
“For a while, when you move from the marble hall at Highbury, it was full of history, to a stadium where nothing happened before you came in there. you feel a bit lonely there, so you have to rebuild the environment from the results that you had before.
“For the supporters it is the same: they sat every time next to the same guy, and they talk and say ‘remember last time we were here, we beat this team’ and then suddenly they sit away from them [in the new stadium].
“You can try [to do something as a manager], but you cannot create something artificially something that doesn’t exist. I feel as well the players on the ground, before when you played at Highbury, you kind of had a picture.
“When you play up front you know where the goal is, because the signals coming from the crowd, you know where the adverts are and sometimes you have no time to make your decision, but you have a geographical reference when you stand on the pitch that is linked to the stadium. You have to recreate that.”
