Fans may vote online through July 11 at 3 p.m. ET and via Twitter from July 2-6.
As anticipated, United forward Josh Wolff announced his retirement today, ending a 14-year professional career that included time in the MLS, Germany and with the U.S. Men's National Team.
Pontius, Olsen and DeLeon were named as finalists for three different MLS awards but despite their outstanding accomplishments, each fell short in voting.
After 17 years with the club, D.C. United president and CEO Kevin Payne announced his resignation today.