West Brom boss Slaven Bilic has taken a swipe at former club West Ham over their departure from Upton Park.
The Hammers left the Boleyn Ground in 2016 to move to the London Stadium in Stratford to increase capacity and raise the profile of the club, but many supporters have expressed regret about the switch in venue.
"It's not an excuse but if you ask me what was it better to play at Upton Park or not then there's no discussion," Bilic told the Telegraph.
"It was more home, it was more hostile. Not one opposition player enjoyed it when they had to go to Upton Park! That's a fact.
"The Olympic Stadium is very different for an away team. You enjoy it more. It's not that you were afraid for your life at Upton Park, but everything was there!"