Koeman is under severe pressure at the Nou Camp as Barcelona’s issues off the pitch have been mirrored on it this season.
Barca are unbeaten in La Liga but have drawn three of their six games and sit in sixth, five points behind leaders Real Madrid with a game in hand.
The real cause for concern stems from the torrid start of Barcelona’s Champions League campaign.
Koeman has watched his side suffer back-to-back 3-0 defeats at the beginning of the group stage, first at home to Bayern Munich before away at Benfica.
After the humbling in Lisbon earlier this week, Koeman insisted he has his squad’s backing, which seems to be mutual in the boardroom for now.
According to Sport, Barcelona won’t sack the Dutchman before the trip to the Wanda Metropolitano on Saturday.
However, if the Blaugrana slump to defeat against Atletico, it will likely be the last game for which Koeman takes charge.
90min report Barcelona have already spent significant time reviewing Koeman’s position and considering potential replacements.
Club legend Xavi is said to be near the top of president Joan Laporta’s shortlist, but the Al Saad coach isn’t sure whether now is the right time amid somewhat of a crisis.
Spanish football expert Guillem Balague has claimed ‘it’s just a matter of time’ before Koeman parts ways with Barcelona.
He told BBC Sport: “It’s just a matter of time until we hear that Koeman has been sacked.
“There was a meeting between the decision-makers, including president Joan Laporta, after their flight landed back in Barcelona from Lisbon.
“They went to the training ground, which is not far from the airport, and they were putting a plan together.
“Timing is of the essence, not only to get rid of Koeman but also to get a plan in place.”
“Martinez is what Laporta is looking for,” Balague explained.
“He is someone who understands the club, who has an admiration for Johan Cruyff and his philosophy, and he has adapted well wherever he has been.
“He plays the type of football – building from the back, playing through the thirds – that the president wants.”