Theodore Valentine Archibald (born 5 March 1998) is a Scottish professional footballer who plays as a right winger for EFL League One club Leyton Orient.
[5][6] Archibald progressed through the youth ranks to be called into the U20 squad for three Scottish Challenge Cup matches early in the 2016–17 season and made his only appearance as a late substitute for Regan Hendry during a 5–1 first round victory over Annan Athletic on 2 August 2017.
[7][8] Following a development loan at Scottish League One club Albion Rovers during the second half of the 2016–17 season,[9] Archibald departed Celtic Park on 9 June 2017, after his contract expired.
[3] On 12 May 2017, Archibald moved to England to sign a three-year B team contract with Championship club Brentford on a free transfer,[3][10] effective 9 June 2017.
[13] He scored the first senior goal of his career on his 21st appearance,[14] with a "stunning" 25-yard injury time strike to seal a 2–1 victory over Northampton Town on New Year's Day 2019.
[33][35] Archibald was again a regular during the 2023–24 season,[36] prior to undergoing surgery on a season-ending anterior cruciate ligament injury suffered in a match versus Port Vale on 6 February 2024.
[41] Archibald won his only U21 cap as a late substitute for Oliver Burke in Scotland's 2–1 2019 UEFA European U21 Championship qualifying win over the Netherlands on 5 September 2017.
[40] Brentford Head of Football Operations Robert Rowan described Archibald as "an inverted right winger, he's powerful, quick, direct and intelligent in possession".