The Senegal international scored the winner in the Blues' 1-0 victory over 10-man Swansea City this afternoon in what was just his third start of the season in all competitions.
Prior to kickoff, the former Newcastle United hitman had made headlines after being quoted expressing a desire to join Paris Saint-Germain in the summer.
Asked by BBC Sport whether or not an exit from West London was certain, Ba replied: "No, it's not definite. I'm a football player and I love playing football. I look forward to playing those 90 minutes next season, wherever that is."