Ronald Koeman was red-carded and Barcelona were left red-faced as they blew their big chance to go top of LaLiga by throwing away a one goal lead at the Camp Nou and falling to a 2-1 defeat against Granada.
Koeman was sent to the stands in the second half after the first of the two Granada goals went in.
He spent the last 20 minutes in desperate phone conversation with his number two Alfred Schreuder but multiple changes barely put a dent in Granada’s stubborn resistance. Koeman will now be banned from the touchline for Sunday’s game with Valencia.
Lionel Messi’s 23rd-minute goal appeared to have Barcelona on course for a fifth straight home win, a result good enough to see them leapfrog both rivals Real Madrid and long-time leaders Atletico in the table.
Messi had broken the deadlock after linking up with Antoine Griezmann, the Frenchman timing his delayed return pass perfectly to allow his team-mate to fizz a low, left-footed shot beyond goalkeeper Aaron Escandell and into the far corner of the net.
However, Granada – who had failed to even manage a draw in any of their previous 25 league visits to their Catalan opponents – turned the game around to further change the outlook in the title race.
Darwin Machis equalised before Barca boss Ronald Koeman was shown a red card, meaning the Dutchman had to watch on from the stands as Jorge Molina was afforded time and space to head in a 79th-minute winner.
The dramatic turnaround had never appeared on the cards, yet Barcelona allowed their opponents to score with their only two attempts on target to cause a huge upset.