Or are they?

Hang on. VAR is on the case and there is a suspicion of offside.

Now Michail Antonio goes down in the box. West Ham's travelling fans are screaming for a penalty but the referee is not interested. These are nervous moments for Forest.

Clinton Morrison
Former Crystal Palace striker on BBC Radio 5 Live

You can tell what David Moyes told the players during half time, first half wasn't good enough, go out and take it up another level to stay in the game. West Ham are currently dominating.

It's all West Ham. Another low cross into the box but Lewis O'Brien gets it away. Forest are defending for their lives.

Should that West Ham 'goal' in the first half have been disallowed?

The Hammers are clearly unhappy and have made a fast start to the second half.

Should Soucek have done better with his header? Probably but that was still a fantastic stop by Henderson.

Image source, Getty Images

Kyle: Brilliant performance so far from Nottingham Forest. A million times better than last weekend at Newcastle. They have been a constant threat going forward and defensively much better. Taiwo Awoniyi is a handful for opposition defences to.

Incredible!

Pablo Fornals strikes the bar within seconds of the re-start. The ball bounces out to Tomas Soucek and his header is clawed away by Dean Henderson.

That's a super save.

Forest get the action back under way.

The players are back out after a well earned break. Will Forest finish the job or will West Ham hit back?

Remember, both sides lost on the opening weekend of the season and do not want to start the new campaign on the back of two straight defeats.

Simon Stone
BBC Sport at the City Ground

Hammers skipper Declan Rice went straight over to referee Robert Jones at half-time to express his dissatisfaction at a few decisions that have gone against the visitors this afternoon.

That goal is a real sucker punch. The noise will be even louder in the second half now.

Eleven attempts. Four on target. One goal.

Forest are giving this everything. Will they keep it up in the second half?

Chelsea will be without Mateo Kovacic because of a knee injury and Marcos Alonso will be missing as head coach Thomas Tuchel said the Spain Left-back "is not training as he tries to finalise his transfer [to Barcelona]".

Tottenham could hand a debut to £60m summer signing Richarlison after his return from suspension.

They will be without defender Clement Lenglet, who has slight tightness in his adductor muscle, and Oliver Skipp, who has a foot injury.

Image source, PA Media

Simon Stone
BBC Sport at the City Ground

Michail Antonio was clearly telling referee Robert Jones that his clash with Orel Mangala was accidental in the build-up to the West Ham goal that was disallowed.

Mangala was knocked over though - and he was the nearest Forest player to Declan Rice before the England man played the ball through to Said Benrahma.

Taiwo Awoniyi has scored the first Premier League goal for Nottingham Forest since 16 May 1999, when they defeated Leicester City 1-0 at City Ground thanks to a goal by Chris Bart-Williams (76').

Clinton Morrison
Former Crystal Palace striker on BBC Radio 5 Live

Standing ovation in the ground. Forest have played well and your first goal, you don't care how it goes in - just that it does.

And that's half-time.

The first half is over in a flash. And Forest have the lead. The City Ground is bouncing.

Forest deserve that. They've been a breath of fresh air. The noise levels are incredible.

This is helter-skelter.

Moments before that disallowed goal, Forest went close to scoring themselves but Neco Williams' close range effort was kept out by Lukasz Fabianski.