Sam Blitz

There was no Bukayo Saka, William Saliba or Martin Odegaard in the training session, but it’s understood they were doing individual training. Situation described as normal given the match is still four days away. #afc

Positive news for Arsenal. Riccardo Calafiori in open training this afternoon. Seems to have avoided injury after coming off at half-time against West Ham. #afc

Mikel Arteta says Riccardo Calafiori came off injured at half-time. #afc

Normally when Arteta talks about making injury subs, he says it's better to change one position, not two during a match. He changed two positions in the first half. Now he's changed three positions at HT. Will this new twist in the game work out in Arsenal's favour? #afc

Arteta needs to use the break to sort out Arsenal's reshuffle. He can bring on Mosquera for Lewis-Skelly and move Rice back into the middle. Rice did have a top game at RB vs Brighton. Ran 1.3km at high intensity - the third highest PL total from an Arsenal player this season.

Seven shots in the first 14 minutes for Arsenal. Rampant start to the game. West Ham's crowd are frustrated already. Arsenal's xG is already at 0.68. #afc

Arsenal unchanged from the win over Atletico Madrid - Mikel Arteta resists from rotating away from the winning team. It's very clear this is Arsenal's first-choice front three. A fantastic Premier League record when Bukayo Saka, Viktor Gyokeres and Leandro Trossard start. #afc

Arrived for West Ham vs Arsenal. Can’t help but feel it all comes down to today - at both ends of the table. Arsenal three wins from the title. But lose here and Man City are three wins from the title. Such a great dynamic. #afc

Analysis - the morning after the night before. After the game, Mikel Arteta was asked about Man City dropping points and Arsenal responding a day later. “Everybody can feel a shift in energy,” he said. The Emirates is back. Something’s happening. #afc skysports.com/football/news/…

So many top Arsenal performers. Rice outstanding. Saka finds priceless moments in limited minutes. How many times has Gabriel saved Arsenal in big moments? Underrated one is Trossard. Ten ball recoveries - double the next best on the pitch. Followed Griezmann everywhere. #afc

The third game in a row where Arsenal have scored in the 44th minute or later. Gyokeres involved in all three of those goals. Arsenal are 45 minutes away from a Champions League final. #afc

Utterly ridiculous... #afc

A massive tackle from Declan Rice early on. So often Arsenal's big-game player, that may just be his best intervention yet. So many players would ball watch there. #afc

Almost time to go.

Small observation: Arsenal warming up with Lewis-Skelly at RCM, with Rice at LCM. Was pretty much the other way round vs Fulham at the weekend, though the shape is usually a double pivot. #afc

As expected, Kai Havertz and Martin Odegaard have stepped off the team bus with the Arsenal team. #afc

You can barely see the Arsenal buses emerge as they approach the ground. Some noise. #afc

Atleti buses arrive. One or two objects thrown at but mostly good behaviour. “You’ve only come to see the Arsenal” sing the home fans. #afc

Myself and @nicholaspwright are answering your questions on all things Arsenal at the Emirates ahead of tonight's big game. @LewisJonesKnows is also working his magic. Send in your questions... #afc skysports.com/football/arsen…

A huge night awaits. Arsenal vs Atletico Madrid - winner goes to the Champions League final. Have just heard a rehearsal for when the teams come out the tunnel - Arsenal pulling out all the stops tonight. A loud evening ahead. #afc