[1] Zupcic attended Bishop Egan (now Conwell-Egan) High School in Fairless Hills, Pennsylvania.

Over the next few years, Zupcic slowly made his way up the ranks of the Red Sox farm system, with stops at Elmira, Lynchburg, New Britain, and Pawtucket.

He made his major league debut at Fenway Park on September 7, 1991, as a pinch runner and defensive replacement in a win against the Seattle Mariners.

Injuries to starting outfielders Burks, Mike Greenwell, and other key players resulted in the Red Sox finishing in last place in the AL East.

Zupcic's defensive abilities caught the attention of longtime Boston Globe sportswriter Bob Ryan.

On September 13, 1992, Zupcic climbed the bullpen railing in center field and robbed Detroit Tigers catcher Mickey Tettleton of a home run.

Over the next couple of months, Zupcic made occasional outfield starts in place of regulars Tim Raines and Darrin Jackson.

[6] Zupcic played his final game on August 4, 1994, and the Major League Baseball strike resulted in the cancellation of the remainder of the season, the playoffs, and World Series.

He started the 1995 season playing with the Independent Northern League's Duluth–Superior Dukes, then moved to Triple A affiliates of the Florida Marlins and White Sox, the Charlotte Knights and the Nashville Sounds.