Victor Boniface takes aim and blazes over the bar. It wouldn't have counted. The offside flag was up.

Out of nowhere, Leonardo Bittencourt forces a rare save from Lukas Hradecky. A reminder that Leverkusen still have work to do.

A quiet start on the pitch to the second half.

Still lots and lots of noise coming from the stands.

As it stands, Leverkusen are on their way to a 38th win in 43 Bundesliga, Europa League and German Cup games this season.

More importantly, they're on their way to the Bundesliga title.

There's a coming together between Piero Hincapie and Leonardo Bittencourt.

The referee shows both a yellow card.

Leverkusen start the second half by sending on Florain Wirtz for Amine Adli.

Image source, Rex Features

Stewart McGettrick: All the hipsters are going to be out claiming to have been Leverkusen fans for years.

There is going to be some celebration in Leverkusen tonight if it stays like this.

Will the hangovers have gone when they fly to London to play West Ham in the Europa League?

The Germans have a 2-0 lead from the quarter-final first leg.

Leverkusen are 45 minutes from a first Bundesliga title!

Leverkusen have recovered from that rare lapse in concentration and are keeping possession in the closing moments of the half.

That doesn't happen often!

Leverkusen switch off and Werder Bremen come close to equalising before the ball is eventually cleared.

That was a nervous moment for the hosts. Now Nathan Tella is on the counter.

Four additional minutes at the end of the first half.

The TV cameras zoom in on the crowd. There's a grown man proudly wearing a Xabi Alonso mask. The Spaniard is a legend in this part of the world.

A word about Leverkusen's fans...they haven't stopped singing since the game started. A really special atmosphere in the Bay Arena.

Image source, Getty Images

Great game-management from Leverkusen. Not only are they dangerous at going forward, they are also intelligent. They are dominating possession with half-time looming.

LondonsFinestClub: Hats off to Alonso, this is a real team that play with control, patience and a killer instinct. He is starting something special and will stay as he will never have the same level control at any big Euro club.

Leverkusen are knocking on the door!

Amine Adli rattles the underside of the bar from an angle.

Surely it's only a matter of time before the hosts get a second goal.

It might only be 1-0 but it is already looking like a long way back for Werder Bremen.

Leverkusen are specialists in keeping clean sheets.

They've only conceded 19 times in the league this season.

It should be 2-0!

Leverkusen are turning on the style and Jonas Hofmann creates space for himself inside the box,

His attempt is heading for the net before it is blocked.

A yellow card for Amine Adli. He will miss Leverkusen's next league match.