Barcelona's willingness to part with Song is not unexpected but the Spanish club's desire to offload Alves comes as more of a surprise.

Reports in Spain suggest that Barca are aware that now is the last chance to really cash in on the Brazilian defender as he enters the final year of his contract.

However, the Catalan club remains concerned that they may struggle to find a suitor for the 30-year-old given his substantial wage demands.

Arsenal have been linked with a move for Alves in the past and could well be in the market for a new right-back if Bacary Sagna leaves on a free transfer at the end of the season.