[1] At the end of the 1998 season, Walter Zenga made history by becoming the league's fist-ever player-manager.
[2] Zenga's Revolution showed their intent to return to the playoffs for the first time since 1997 by signing former United States men's national soccer team captain John Harkes, and 1996 MLS All-Stars Giovanni Savarese and Dan Calichman prior to the 1999 Major League Soccer season.
The team made several acquisitions in mid-season, including then-highest-paid MLS player of all time Ariel Graziani, two-time MLS Cup champion Mario Gori, two-time MLS All-Star Leonel Alvarez, and Jeff Baicher, but were unable to make a run, going on a ten-game winless streak from early July to early September, then winning only two of their final six matches to round out the season.
[5] Joe-Max Moore's 15 goals tied him for fourth-highest total in the league with San Jose's Ronald Cerritos.
[7] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.