As a true freshman at Georgia, Darnell recorded 166 yards on seven receptions.[5]
In Washington's second season he put up 145 yards on nine receptions and scored one touchdown. This touchdown was the first of Washington's career and it came in the SEC Championship Game against Alabama.[6] Washington's longest gain of the season came on a 32 yard reception against Florida. He appeared in seven games and missed time due to having to have surgery for a minor fracture in his foot.[7][8][9] In the 2022 College Football Playoff National Championship, Georgia defeated Alabama 33–18.[10]
During Washington's third season, he recorded 28 receptions for 454 yards and two touchdowns.[11] As a result, Washington was named to the Second-team All-SEC.[12] On January 12, 2023, Washington declared for the 2023 NFL draft.[11][13]
Washington was drafted 93rd overall in the 2023 NFL Draft by the Pittsburgh Steelers and on May 12, 2023, he signed his rookie contract.[16] As a rookie, he appeared in all 17 games and made seven starts. He had seven receptions for 61 receiving yards.[17] During his tenure as a rookie, he was given the nickname "Mount Washington" due to his large frame and as a reference to the Pittsburgh landmark/neighborhood Mount Washington.[18]
2024
In his second season, Washington would score his first career touchdown on a five yard pass from Justin Fields to put the first points on the board in a 13-6 Steelers victory over the Denver Broncos.[19][20] After the touchdown reception, Washington celebrated by giving a salute. He would explain in a post-game interview the salute was for his brother, a member of the United States Marines.[21]