He threw and batted right-handed, and stood 6' (183 cm) tall and weighed 178 pounds (81 kg) as an active player.

He made his major league debut for the club on April 18, 1964, against the Washington Senators.

Despite his modest abilities, he started in center field for most of the games of the 1965 World Series over All-Star Jimmie Hall.

During the 1966 season, Nossek's contract was purchased by the Kansas City Athletics and played in 174 games for them over the next two years.

Nossek, skilled at sign stealing,[2] was a longtime (28-year) coach in the major leagues after his active career ended, serving with the Milwaukee Brewers (1973–75), Twins (1976), Cleveland Indians (1977–81), Kansas City Royals (1982–83) and Chicago White Sox (1984–86; 1990–2003).