Luis Suarez is again racing against time to be fit for a tournament with Uruguay.
Five years ago, it was meniscus surgery to his left knee that jeopardized Suarez's participation at the World Cup in Brazil. Now it is an arthroscopy procedure on his right knee that has affected his preparations for the Copa America in the same country.
Suarez had the operation about a month ago and it remains unclear if the Barcelona striker will start for Uruguay in its opener against Ecuador on Sunday in Belo Horizonte.
He played for about 30 minutes in the 3-0 win over Panama in a friendly last week, scoring a goal shortly after going on in Montevideo.
"I'm always motivated and positive that if you do things the right way you can arrive in good condition," the 32-year-old Suarez said.
Uruguay coach Oscar Tabarez has yet to announce his team for Sunday's match at the Mineirao Stadium, and Suarez could start on the bench.
"Your fitness depends on how the game progresses," said the country's all-time top scorer. "I want to play the whole game, but we'll see.
"At the 2014 World Cup I thought I had arrived well, but after 60 minutes I was already feeling cramps."