Arsenal: Ainsley Maitland-Niles is still out with a broken leg while Carl Jenkinson and Sead Kolasinac are also long-term absentees. Laurent Koscielny is back in light training and could feature on the bench for the 'Gunners'.
West Ham: Mark Noble hasn't trained this week with a back injury and will likely miss the game, as will Andy Carroll, Manuel Lanzini and Winston Reid.
Emery: In our process, we are going 38 matches [in total] against all the teams. Whether you are playing against Manchester City, it’s the same as if you’re playing against West Ham on Saturday. There are three points on this game. It’s clear that every game demands different things tactically. After the first two matches, we have two defeats and we need to win this match against West Ham. The difficulty is in this game because West Ham are a good team with good players and a good coach. They know the Premier League very well and they have a lot of new players.
Pellegrini: It will be strange to look across to the Arsenal dugout and see a manager other than Arsene Wenger sitting there. Unai has a lot of experience in different countries and not only Spain because he went to Russia and he went to France. He won a lot of titles with Sevilla in the Europa League, so I think he is a manager whose teams always play good football and I think he will do great work at Arsenal. It’s not normal that Arsenal start the season by losing their first two games, but the pressure, at least for me, is always on winning or losing, and the pressure must be the same on every game if you want to have a successful season. Both teams cannot win for the moment and we will see which will come out of that and which will continue losing on Saturday.
Did you know?
Arsenal have lost just one of their last 22 matches against West Ham.
The Hammers have conceded 74 Premier League goals since the start of last season.
Only Manchester City won more points at home than Arsenal in the top flight last season.
Score predicition: 2-1
Arsenal possible XI: Cech, Bellerin, Mustafi, Sokratis, Monreal, Guendouzi, Ramsey, Ozil, Mkhitaryan, Aubameyang, Lacazette
West Ham possible XI: Fabianski, Zabaleta, Balbuena, Ogbonna, Masuaku, Snodgrass, Sanchez, Wilshere, Anderson, Arnautovic, Hernandez