Coutinho has attracted interest from Chelsea and Arsenal in the Premier League and an initial loan move could be on the cards.
After spending five years at Liverpool, Coutinho left for Barcelona in 2018 after the Spanish giants forked out a reported 160 million euros to fill in Neymar's shoes.
Philippe Coutinho is on a season-long loan from Barcelona and has scored eight goals in 22 Bundesliga appearances for Bayern Munich.
Brazil's tag as pre-tournament favourites looked justified in a dominant first-half capped by Philippe Coutinho's wonder strike to open the scoring.
Ernesto Valverde rested Lionel Messi for his team's penultimate match of the campaign but it was a defensive horror-show by the Catalans.
Wijnaldum said they would have been happy if Coutinho made the move as it could have helped his career.
Robertson arrived from Hull in July but is yet to feature in a competitive game since his 12 million dollars transfer.
Henderson admitted that he is powerless to influence Coutinho's thinking, after the Brazilian reportedly submitted a transfer request.
The Brazilian winger was at his peak in the 2016-17 campaign, scoring 13 times and providing seven assists in 31 English Premier League appearances.
Coutinho is Barcelona's top target to replace Neymar following the striker's world record move to Paris Saint-Germain.