Postpublished at 20:00 British Summer Time 29 April 2021
Right that's all from La Liga from us tonight but you can head over here for our Europa League coverage.
Lionel Messi slots opener into far corner but Machis levels and Molina gives visitors lead
Barca are in third place, still two points behind leaders
Koeman's side play leaders Atletico next weekend
Get involved via #bbcfootball or text 81111 (UK only)
Gary Rose
Right that's all from La Liga from us tonight but you can head over here for our Europa League coverage.
Barcelona 1-2 Granada
Granada's Jorge Molina: "This is a big achievement. We came here with a lot of players out but we showed the same spirit we have shown all season.
"If you can come back into a game against Barcelona in it an enormous credit to the players.
"The key is to be a team and be united. The only secret is working hard together."
Barcelona 1-2 Granada
Barcelona's Jordi Alba: "We feel terrible.
"We were not at our best in the second half and they scored two goals with two chances.
"There are five games left, we have to try and win those five but now it is not down to us. We have to win and hope."
Barcelona 1-2 Granada
All over!
A big blow for Barcelona's title hopes. They could have gone top with a win but instead they have a lot of work to do if they are to win the title.
Barcelona 1-2 Granada
... Lionel Messi whips the ball in and it just whisker over Gerard Pique's head!
Barcelona 1-2 Granada
Marc-André ter Stegen is up for a free kick for Barcelona. Last chance saloon...
Barcelona 1-2 Granada
Into the first of four added minutes and a draw is looking the best Barcelona can hope for, but Granada are coping well with what their opponents can throw at them.
Barcelona 1-2 Granada
Lionel Messi sends a good ball to the back post and Jordi Alba keeps it in place, trying to find Gerard Pique and there's a scramble before the whistle goes for a foul by Pique.
Barcelona 1-2 Granada
Dimitri Foulquier takes the ball into the corner as Granada try to run down the clock. Eventually Pedri is able to get a foot in and win back possession, but time is really against the hosts...
Barcelona 1-2 Granada
Barcelona have just under 10 minutes to find a couple of goals and they make a change as Sergio Busquets is replaced by Trincao.
Jorge Molina
What a turnaround!
Terrible defending from Barcelona as Jorge Molina is left unmarked inside the box and he flicks a header from a cross into the back of the net.
For so long Barcelona looked comfortable in this game but now they are behind and, bar a dramatic finale, they will not be going top of the table.
Barcelona 1-1 Granada
Lionel Messi hits a free-kick into the wall but Barcelona keep the ball alive and work it wide to Antoine Griezmann, who finds Gerard Piqué inside the box but he turns the ball just wide.
Barcelona 1-1 Granada
Goalscorer Darwin Machis makes way for Adrian Marin for Granada as the hosts look to protect the point.
Barcelona 1-1 Granada
Pedri is also on for Ilaix Moriba as Ousmane Dembele tries to curl an effort into the top corner but his shot is blocked.
Barcelona 1-1 Granada
Barcelona need a spark from somewhere with just over 15 minutes left and they make a change as Ousmane Dembele comes on for Oscar Mingueza.
Barcelona 1-1 Granada
Darwin Machís is onto a sloppy pass just outside the Granada box and breaks towards the Barcelona goal. The hosts are able to get back and shut down the opportunity.
Barcelona 1-1 Granada
Barcelona still have plenty of time to get back in front but the equaliser has knocked their rhythm a bit. They are still seeing plenty of the ball but struggling to find a way to break Granada down.
Barcelona 1-1 Granada
It gets worse for Barcelona as their coach Ronald Koeman has been sent off - not sure what for yet but he's on his way down the tunnel.
Darwin Machís
Well then...!
Barcelona pay the price for not getting a second as Darwin Machís gets ahead of Sergi Roberto to a ball over the top and then fires beyond Marc-André ter Stegen.
That could be a massive goal in the title race.
Barcelona 1-0 Granada
Great ball through the defence by Sergio Busquets but it is just beyond Sergi Roberto.
Barcelona keeping up the pressure but a second goal is so far proving elusive.