A native of Byram Township, New Jersey, he attended Lenape Valley Regional High School in Stanhope, New Jersey, and is an alumnus of the County College of Morris and the University of South Carolina Aiken.

[2] Drafted by the Los Angeles Dodgers in the 22nd round of the 1994 Major League Baseball June Amateur Draft, Riggs made his Major League Baseball debut with the Dodgers on August 7, 1997.

Riggs gained notoriety after a 2003 game with the Anaheim Angels in which he wore a uniform which featured the team name misspelled as "Angees",[3] which appeared in Sports Illustrated, and was also nominated for a This Year in Baseball Award for Most Bizarre Moment in 2003.

In the report, Kirk Radomski states that Riggs bought human growth hormone, clenbuterol, and Winstrol from him between July 10, 2003, to November 30, 2005.

Riggs declined to meet with the Mitchell investigators but provided a letter from his lawyer stating that he "never tested positive for improper substances".