Image source, Rex Features

This game shows form doesn't count for much heading into the play-offs.

The Cherries lost their final three games of the season, while Brentford won four in a row in a 12-match unbeaten run at the end of the regular campaign.

The Bees will want something to take into the second leg on Saturday.

Brentford have upped the intensity.

Rico Henry gets into the Bournemouth box on the left and tries to trick his way into a crossing position.

But he can only send the ball into the side-netting.

Another change for the visitors.

Henrik Dalsgaard also makes his return from injury, replacing Vitaly Janelt.

The corner is poor from Mathias Jensen, and heads straight behind for a goal-kick.

Not what you want when you are a goal down.

Ben Pearson can't continue and Jack Stacey comes on for the Cherries.

His first task will be to help defend a corner.

Bournemouth centre-back Chris Mepham cuts out a low ball into the box intended for Bryan Mbeumo.

Now Cherries midfielder Ben Pearson is down requiring treatment.

The medical staff have been busy this evening.

Image source, Rex Features

Bournemouth are in a decent position now, knowing they can hurt Brentford on the counter attack if the Bees over-commit while searching for an equaliser.

David Brooks and Arnaut Danjuma have the quality to exploit any gap in the away defence in the final quarter of the game.

The contest is starting to open up as the visitors come forward. Asmir Begovic has just raced off his line to smother an attempt from Emiliano Marcondes.

Adam Williams
BBC Sport at the Vitality Stadium

How much of an impact can Rico Henry have in the remainder of this first leg?

This is his first appearance since a hamstring tear against Coventry City in mid-February.

That injury also coincided with Brentford's 21-match unbeaten run ending and the Bees losing momentum in their push for automatic promotion.

His inclusion in this squad come as a timely boost for Brentford, can it stirr them to an equaliser now?

Bryan Mbeumo tries to get in behind the Bournemouth defence, but Cameron Carter-Vickers does well to get back and block behind for a corner.

Asmir Begovic gathers the corner at the second attempt inside his six-yard box.

Heart-in-moth moment for Cherries fans.

Mathias Jensen smashes a shot into the side-netting of the Bournemouth goal from a narrow angle.

The Bees are stirring as they look to reply to Arnaut Danjuma's opener.

Brentford head coach Thomas Frank responds to that goal with a triple substitution.

Rico Henry, Emiliano Marcondes and Bryan Mbeumo come on.

Mads Roerslev, Tariqe Fosu and Marcus Forss head off.

Left-back Henry is back after almost three months out win injury.

Brentford have a chance to reply from a free-kick as Ethan Pinnock gets a free header on the edge of the box from a free-kick.

The hosts clear the initial ball and then Tariqe Fosu sends a cross behind.

Adam Williams
BBC Sport at the Vitality Stadium

Great noise inside this ground to great that goal from Arnaut Danjuma.

Bournemouth have more than deserved it after the chances they created before the break.

Fantastic to hear fans responding to a fine bit of play and finishing.

The Cherries and their fans are frustrated as Jefferson Lerma is caught late by Vitaly Janelt.

Arnaut Danjuma is then flagged offside as the hosts look to break.

Play restarts with a Bees free-kick, as the challenge from Janelt is not punished.

Christian Norgaard hooks a half-volley over the Bournemouth bar from nine yards out.

The defender got on the end of a knock-down from fellow defender Ethan Pinnock.

The Bees have started the second half the brighter.

Pontus Jansson was sent off as the Bees won at Bournemouth last month.

The Swedish centre-back is walking a tightrope now in the second half, alongside team-mate Mads Roerslev.

Lloyd Kelly heads away an inswinging cross from Sergi Canos from the left.

The left-back clears another ball into the box.

Then Bees skipper Pontus Jansson is booked for climbing all over the back of Dominic Solanke as the Cherries striker tries to shield the ball.

Bournemouth right-back Adam Smith is fine to continue for the second half.

Bees striker Ivan Toney is also still out there, having taken a knock while attacking a corner towards the end of the first 45 minutes.

The Cherries get the second half going on the south coast, with rain continuing to fall.

Can either side find a breakthrough in the second 45 minutes and end the first leg on top?

In their nine previous play-off campaigns, Brentford have only won the first leg of a semi-final once.