The 22-year-old former University of Georgia swimmer has been added as an alternate to the 400-meter freestyle relay after Dara Torres withdrew from the 100 free.
Torres won the 100 free at last week's Olympic trials, but dropped out to focus on the 50 free in Beijing.
Joyce finished seventh in the 100 free at the trials one spot out of making the team. The top six finishers in both the men's and women's 100 and 200 freestyles qualified for the Olympics.
Anyone on the team is eligible to compete on relays, which are chosen by the coaching staff during the games.
Joyce earned two silver medals in Athens, in the 400 free and 400 medley relays.
http://accesswdun.com/article/2008/7/211429