Barcelona defender Dani Alves has warned the club that he could leave in the summer unless things start to change.
The Brazilian has been with Barcelona since joining from Sevilla in 2008, helping the club to win the Champions League twice and La Liga four times.
Despite his success with Barcelona, in recent weeks Alves has been linked with a move away, with Paris Saint-Germain said to be interested in securing his services.
The 31-year-old made headlines recently when he responded to racist taunts from Villarreal fans by eating a banana that was thrown at him while trying to take a corner.
Alves says that the problems Barcelona have faced this season have prompted him to consider his future.
"I need energy, it is what moves me, I am a happy person. I have always been like that, but when the results not being as people expected there have to be shots fired, and I feel fired at. If you begin to feel the energy is negative, then things do not flow.
"If this energy does not change, for sure I will leave because it takes a lot out of you. For me to stay this summer the energy would have to change."
The Catalan club have endured something of a difficult season so far under boss Tata Martino - although they are now back in the title race after Real Madrid and Atletico Madrid dropped points last weekend.
Former player Luis Enrique is reportedly being lined up as his replacement - although Alves believes it's wrong to undermine Martino while he tries to help Barcelona win the title.
"As a player [Luis Enrique] was phenomenal and as a coach he is doing very well at Celta, but I believe this club often moves too quickly with things," he said. "We are still fighting for La Liga. Things should be a bit more relaxed, with less hurry, because the season has not ended yet."
He added of Barca's season: "If we do not win La Liga, the season is a disaster. We are getting too many chances and cannot let them go. I trust 100 percent in this team and guarantee we will not fail."
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