As always, there have been plenty of transfers across the continent that just haven't worked out - but which were the biggest flops?

Nottingham Forest are interested in signing Juventus midfielder Douglas Luiz this summer, per the Daily Mail.

Juventus want to sign Sandro Tonali from Newcastle and could include Douglas Luiz in a potential swap deal, according to a report.

Recently-sacked head coach Thiago Motta's handling of Douglas Luiz has been severely criticised by former Juventus player Alessio Tacchinardi.

Juventus midfielder Douglas Luiz responded to criticism from a supporter on social media and complained about his lack of playing time at Turin.