The 20-year-old Denver native arrives from FC Barcelona, where he started in the fabled club’s academy in 2018.
Gill was playing for Barcelona’s B team until a loan this season to UE Cornella of Spain’s fifth tier.
“Adrian is a young midfielder with U.S. youth national team experience whose development path led him to one of the top academies in the world at Barcelona,” Atlanta sporting director Chris Henderson said. “We’re pleased to welcome him to the club and add more competition to our group of midfielders.”
Gill represented the U.S. U-17 team 10 times from 2022-23. He made seven appearances at the 2023 Concacaf U-17 championship, recording two assists as the Americans advanced to the final.
Atlanta United opens the MLS season on Feb. 21 with a visit to FC Cincinnati.
