Banned sprinter Sha'Carri Richardson was not on the Olympic roster released Tuesday by USA Track and Field, a decision that means the American's positive test for marijuana will cost her a chance at running on the relay team in Tokyo, in addition to her spot in the 100-meter individual race.

Richardson's positive test nullified her win at Olympic trials in Eugene, Oregon, last month and the spot that went with it in Tokyo in the 100. Her 30-day suspension will end before the start of the relays on Aug. 5, which left open the possibility she could win a medal as part of the 4x100 relay team.

But her name was not on the roster USATF sent out. The federation had two discretionary picks beyond the top four finishers in the 100-meter final at trials but chose not to offer a spot to the 21-year-old sprinter, who was expected to challenge for Olympic gold.

Asked about how Richardson was taking the news, her agent, Renaldo Nehemiah, responded: "We haven't spoken about it at all. It was actually not a topic we focused on."

In a statement, USATF said it was "incredibly sympathetic toward Sha'Carri Richardson's extenuating circumstances" and "fully agrees" that international rules regarding marijuana should be reevaluated.

"So while our heartfelt understanding lies with Sha'Carri, we must also maintain fairness for all of the athletes who attempted to realize their dreams by securing a place on the U.S. Olympic Track & Field Team," the statement read.

In this case, that meant offering the remaining relay spots to the sixth- and seventh-place finishers, each of whom moved up in the pecking order after Richardson's disqualification. They are English Gardner and Aleia Hobbs.

Richardson tested positive for a chemical found in marijuana after her victory on June 19. She said the stress of her biological mother's recent death combined with the pressure of preparing for trials led her to use the drug.

"I was definitely triggered and blinded by emotions, blinded by badness, and hurting and hiding hurt," she said on NBC's "Today" show. "I know I can't hide myself, so in some type of way, I was trying to hide my pain."

Over the weekend, she sent out a pair of tweets: "All these perfect people that know how to live life, I'm glad I'm not one of them!" and "2022-2025 undefeated!"

Richardson also told "Today" that this isn't the end of her Olympic dreams.

"This is just one Games. I'm 21, I'm very young. ... I have plenty of Games left in me to compete in and I have plenty of talent that backs me up, because everything I do comes from me naturally. No steroid, no anything," she said. "This incident was about marijuana, so after my sanction is up I'll be back and able to compete, and every single time I step on the track I'll be ready for whatever anti-doping agency to come and get what it is that they need."

Shortly after the 2012 Olympics, international regulators loosened restrictions on marijuana use, increasing the threshold for a positive test to a level designed to catch athletes who were using it in the immediate hours before competition. Potential bans were reduced from two years to as little as the 30-day suspension that Richardson is serving.

But where some professional leagues, such as the NFL, NHL and NBA, have greatly reduced enforcement of marijuana rules, with the acknowledgement that the drug does not enhance performance, the Olympic world continues to test for and punish use in some circumstances. According to the U.S. Anti-Doping Agency, in addition to substances that trigger performance enhancement, the banned list can include drugs that can pose health risks to athletes or violate the "spirit of sport."

It's a stance that has triggered a wide-ranging debate, largely in the realm of social media but also in Washington. Last week, President Joe Biden said that while he was proud of the way Richardson handled her ban, "the rules are the rules."

"Whether they should remain the rules is a different issue, but the rules are the rules," Biden said.

Meanwhile, Rep. Alexandria Ocasio-Cortez of New York tweeted out a letter she and Rep. Jamie Raskin of Maryland sent to the leaders of both the U.S. and world anti-doping agencies urging them to overturn the decision.

"Please strike a blow for civil liberties and civil rights by reversing this course you are on," the letter said.

The Associated Press contributed to this report.