Catalunya Radio have reported that club representative Andre Cury - who played a key role in Barca's signing of Neymar from Santos in 2013 - has met with Neymar and his team as interest around a potential return for a player who left in 2017 gathers pace.
Denis came off the bench against Levante in midweek to earn Barça a penalty as they were beaten 2-1 in their Copa del Rey round of 16 first leg.
It has been a different story so far this season, however.
"I was at their training session", the Brazilian said previous year. The club paid that last season and will be due to pay the same amount this season - but only if Coutinho is still at the club.
Coutinho has scored six goals and registered four assists in 24 games across all competitions this season.
The same article states that the La Liga champions are prepared to listen to offer for the Brazilian playmaker after a disappointing 12 months for the former Liverpool FC star at Camp Nou.
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"Dembele has moved a bit ahead [of Coutinho]", he said.
Marca are reporting that Coutinho's confidence has taken a massive hit after his recent performances and that he's now at "rock bottom".
There have been some spectacular moments and promising performances, but the last few weeks in particular have seen the Brazilian desperately struggle to contribute on a consistent basis.
"I think Neymar feels really happy, he's professional", Tuchel said.
That's because Coutinho's £142 million deal contained a number of clauses.