"Pedro, for us, is very important because he is the best player we have with movement without the ball", Sarri added.
"Maybe we should have gone a bit more down the wings and put in more crosses into the box". This year was my final decision to go. "The coach will obviously make some changes, but we have many players with quality and we have a good team". The Belgian failed to carry a consistent goal threat in his first match since being publicly challenged by Sarri to break the 40-goal barrier this season.
Below are some of their reactions to the West Ham man's performance.
Alexandre Lacazette and Pierre-Emerick Aubameyang scored goals within three minutes of each other early in the second half at Emirates Stadium.
"In Naples, the beginning was very hard".
West Ham have improved in recent weeks, after picking up four points from their last two games. It was just getting us to gel together, obviously signing nine players at the beginning of the season and a new manager, it was always going to be hard.More news: One Year Out From Hurricane Maria, Full Recovery Still Elusive
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It's not hard to imagine Sarri's high defensive line being torn to shreds, particularly if Rudiger's injury deprives the Blues of all recovery speed.
The home side could have punished them but Michail Antonio, who was deputising for the injured Marko Arnautovic, missed two first-half chances and Andriy Yarmolenko headed wastefully wide.
"When you have so many clear chances against a big team, you must score one of them", he said. "I don't know. I want to see the picture of the situation tomorrow morning during the training session". Even though we didn't do so well, we could have won the game at the end of it.
"We know that many teams now are going to play against us this way, with a low block and trying to play on the counter-attack, so there was not a lot of space, but it is up to us to try to find a solution".
Information from The Associated Press was used in this report.