Jonathan Calleri says he's quickly settling in at West Ham.
Sunday's fixture was West Ham's first league match at their new home, the Olympic Stadium, built for the 2012 London Games.
"It's a beautiful stadium with beautiful acoustics and the pitch is magnificent," Calleri told Efe.
"The truth is that I felt very good out there.
"I am very happy to be here, I've had a great welcome and now I hope to be able to help my teammates.
"I know there will be a period of adaptation and I'll try to do so as quickly as possible.
"The players who come from South America often take time to settle, but I want to quickly be able to show the English supporters why I came here."