Arias sustained the injury in Palmeiras' 3-0 home win over Santos in the Copa do Brasil on Wednesday, and the club announced an update on his status late on Thursday night.<\/p>\r\n\r\n
\"Medical examinations performed on Thursday confirmed that Jhon Arias sustained a right thigh injury,\" read a statement on the club's official website.<\/p>\r\n\r\n
It added that Uruguayan defender Joaquin Piquerez was in doubt for Palmeiras' visit to Mirassol on Sunday due to swelling in his right thigh, reports Xinhua.<\/p>\r\n\r\n
Meanwhile, captain Gustavo Gomez was cleared of injury after he was substituted at halftime of the match against Santos due to muscle soreness.<\/p>\r\n\r\n
Palmeiras lead Brazil's Serie A standings with 51 points, six ahead of second-placed Flamengo.<\/p>\r\n\r\n
In the earlier round, Jose Manuel Lopez scored twice as Palmeiras extended their lead at the top of Brazil's Serie A with a 4-1 home win over Vasco da Gama.<\/p>\r\n\r\n
Lopez opened the scoring in the 47th minute before Vitor Roque converted a penalty and Mauricio added a third goal just inside the hour.<\/p>\r\n\r\n
Argentina international striker Lopez struck a minute again from time ahead of Facundo Colidio's stoppage-time consolation goal for the visitors.<\/p>\r\n\r\n
Lopez opened the scoring in the 47th minute before Vitor Roque converted a penalty and Mauricio added a third goal just inside the hour.<\/p>\r\n\r\n
Coritiba won 2-1 at home to Corinthians, Mirassol drew 1-1 at Santos, Chapecoense won 1-0 at home to Sao Paulo, Bragantino secured a 1-0 home win over Gremio, and Bahia prevailed 2-0 at Vitoria in that round of matches.<\/p>\r\n\r\n