The video will start in 8 Cancel

Use your head like Sadio and subscribe to the Liverpool FC newsletter Sign me up Thank you for subscribing We have more newsletters Show me See our privacy notice Invalid Email

Liverpool may have been given another option in their pursuit of attacking reinforcements for next season.

Sporting Lisbon winger Gelson Martins was among several names being considered last summer before the Reds completed their £36.9million move for Mohamed Salah from Roma.

And now Martins could be available on a free transfer following a remarkable series of events at his Portuguese club.

The 23-year-old is one of four players to have filed notice with the Portuguese Securities Market Commission on Monday they were breaking their contracts with Sporting.

Their move comes after a difficult few weeks in Lisbon, notably last month when 50 fans forced their way into the team's training camp and assaulted players and staff.

Video Loading Video Unavailable Click to play Tap to play The video will start in 8 Cancel Play now

Das Bost, who suffered a head injury in the incident, William Carvalho and Bruno Fernandes have joined Martins in rescinding their contracts, citing “just cause” in their explanation.

Sporting coach Jorge Jesus, goalkeeper Rui Patricio and forward Daniel Podence have already quit the club.

Latest reports in Portugal claim Martins and his team-mates could back down should Sporting president Bruno De Carvalho leave the club.

It has been alleged De Carvalho, a controversial figure, used to belong to a radical fan group similar to those who attacked the players. He denies the accusations.