The doctor treating Paraguay international Salvador Cabanas has revealed the swelling on his brain has gone down.
Cabanas, a striker for Mexican side Club America, was shot in the head in Mexico City during the early hours of Monday morning following an incident in a city bar.
Dr Ernesto Martinez Duhart told a press conference that, although Cabanas remains in a serious condition, there has been a slight improvement.
"Salvador remains delicate, but there are improvements," Dr Duhart said on Club America's official website. "The new study indicates that the swelling is beginning to subside. The signs are more stable - this was the best day since he arrived."
Cabanas was transported to an intensive care unit at a local hospital after the incident and was rushed into theatre where doctors made an attempt to remove the bullet lodged in his skull before deciding it would be too dangerous.
Cabanas, 29, is one of Paraguay's top players and was part of their World Cup squad in Germany four years ago. He is a prolific goalscorer and was expected to lead Paraguay's attack in South Africa this summer.
Sunderland manager Steve Bruce recently revealed he was interested in bringing the striker to the Premier League after he netted 18 goals in 24 matches this season.