Career
Roboostoff was selected for the United States. Olympic team in 1971 as it began the qualification process for the 1972 Summer Olympics to be held in Munich. At the time he played for the Concordia Athletic Club in the San Francisco League. He played all three United States. games in the tournament as the United States. went 0-2-1.
Following the Olympics, he was called into the United States. national team
He earned his first cap when he replaced Emmanuel Georges at halftime of an August 10, 1973 loss to Poland. His second cap, and first start, came over a year later in a September 5, 1975 loss to Mexico.
He played five more games with the senior team, his last coming on August 25, 1975, a loss to Mexico when he came on for Joey Fink in the sixty-six minute. In 1974, Roboostoff signed with the San Jose Earthquakes of the North American Soccer League.
He spent the 1974 and 1975 season in San Jose before being traded to the San Diego Sockers.
He lasted only one season in San Diego before moving to the Portland Timbers for the 1977 season. In 1978, he played three games in Portland before being traded to the Oakland Stompers. At the end of the 1978 season, Roboostoff left the NASL.