Luis Suarez kicked a ball again during World Cup training on Saturday just 16 days after undergoing knee surgery, Uruguayan media reported.
The Liverpool striker has been "walking, running a little in a straight line and for the first time kicked the 'Brazuca' ball", said the Uruguayan football website Tenfield.
"He played short passes and did some headers", Uruguayan newspaper Ovacion reported of the team training session, which was supposed to take place behind closed doors.
On Friday, Uruguay coach Oscar Tabarez said Suarez's rehabilitation was proceeding well.
The 27-year-old is a key element in Uruguay's team after the best season of his career when he was top scorer in the English Premier League with 31 goals for Liverpool, who finished runners-up to Manchester City.
Suarez underwent a knee operation on May 22 in Montevideo to fix a problem with his meniscus.
Uruguay are in Group D with England, Italy and Costa Rica.