The NWSL club released an official statement: "The Portland Thorns announced today that it has reached an agreement with Arsenal to bring midfielder Laila Harbert on loan through the 2025 season. The 18-year-old English youth international arrives in Portland after signing her first Women’s Super League contract with Arsenal - the reigning UEFA Women’s Champions League winners - in January before going out on loan to WSL 2 side Southampton FC, where she started in eight of her nine appearances. She also spent time with WSL 2’s Watford on a dual-registration agreement in 2023-24, playing 14 matches. Harbert has two appearances for Arsenal which includes a 2024 pre-season match at Washington Spirit when she came on in the second half to help the Gunners secure a 2-1 victory."
The club added that "Harbert will develop as a member of the league’s youngest core as part of Portland’s effort to build a talented and competitive roster for 2025 and beyond."