Coutinho marked his return to action with a goal in Brazil's 2-0 World Cup qualifier win over Ecuador in the early hours of Friday morning.
Speaking after the game, Neymar informed the press that the attacking midfielder is disappointed a move to the Camp Nou never materialised.
'Unfortunately, instead of being a happy time for him (Coutinho), for his family, it's a moment of anguish, disappointment and sadness,' said Neymar via 'esporte'.
'I like to see him happy because he is a team-mate and a friend that I've had for a long time. He was rewarded with a goal today, for his and our joy.'
Barcelona do have until 10.59pm tonight, however, to launch a late push for the wantaway Brazilian.