Liverpool are chasing their first English top-flight title since 1990 and a victory over the Chelsea at Anfield would be a big step toward that dream.

The Chinese Football Association (FA) said in a statement that it had launched an investigation and would hold hearings to determine whether any league conduct rules were violated.

Demba Ba, who plays for Shanghai Shenhua, tangled with Shanghai SIPG captain Sun Xiang as they both raced for the ball in the second half of Sunday's Chinese Super League clash

The 30-year-old Demba Ba will undergo a medical test in Shanghai on Sunday.

Senegalese international striker Demba Ba has signed a four-year deal worth 8.1 million US Dollars.

Samuel Eto'o squandered a few chances in another scrappy 1-0 win for Chelsea over Swansea on Boxing Day.

Demba Ba's first half goal was enough to fulfil that ambition and, while Chelsea were some way from their best, this fairly forgettable encounter could yet prove a significant stepping stone if they go on to have a successful European campaign.

Chelsea are now in second place, four points behind leaders Arsenal, after staging a second-half comeback to beat Southampton 3-1 at Stamford Bridge on Sunday.

Atletico Madrid and Barcelona joined Manchester City and defending champions Bayern Munich in qualifying for the last 16 with two group games remaining.

Chelsea earned a 3-1 win to move third in the table with Jose Mourinho's changes proving effective.