One player who might leave each champion of Europe's top five leagues 

#4 Barcelona - Philippe Coutinho

Coutinho has been disappointing for Barcelona this season.

Barring a few performances, Philippe Coutinho has struggled to adjust to life at Barcelona since his move from Liverpool in January 2018. The Brazilian has failed to replace Neymar at the Catalan club, and most importantly, Coutinho has failed to justify his expensive transfer fee.

His performance against Liverpool in the return fixture of the Champions League was criticized by many supporters and it seems, Coutinho's time at Barcelona is coming to an end. Manchester United and Chelsea could be the clubs interested in bringing Coutinho back to the Premier League.

Members of Barcelona's board of directors are keen to sell Philippe Coutinho this summer, we understand.The club are bracing themselves for interest from Chelsea as they go in search of a replacement for Eden Hazard.(@IgnasiOliva ✍) pic.twitter.com/zSW3fMCPRQ

— Goal (@goal) May 13, 2019

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#5 Bayern Munich - Robert Lewandowski

The Polish striker is in demand across Europe

Robert Lewandowski is probably one of the best strikers in world football right now. The Polish striker has been influential in Bayern Munich exerting dominance in the Bundesliga throughout the last few years. After becoming the highest goal-scorer in Bundesliga this season too, Lewandowski could consider yet another season in Germany.

However, it is unlikely as the club has failed in the Champions League. Bayern could also be looking for a younger player who could be the long-term striker option for the club and hence, if the right offer arrives, Bayern's No.9 could leave the club.

Man Utd linked with two strikers as they 'make Robert Lewandowski transfer enquiry'https://t.co/BzSjD2PVcM pic.twitter.com/oDcQcR4gKU

— Mirror Football (@MirrorFootball) May 17, 2019