|Full name||Joseph Efford|
|Date of birth||August 29, 1996|
|Place of birth||Georgia, United States|
|Playing position||Left Winger|
|* Senior club appearances and goals counted for the domestic league only and correct as of May 6, 2019|
Efford graduated from Dacula High School in 2014. Right after he finished freshman orientation at the UNCG, he passed up college soccer scholarship, instead opting for a pro career in Europe. He went through several trials in Romania, before landing a contract with Liga I side FC Botoșani in June 2014. His contract was however terminated in July.
He left Romania to undergo a new series of tryouts in Spain, eventually ending up training with Segunda División side RCD Mallorca. After convincing Los Bermellones of his worth during a two weeks trial, he signed a contract with the club in September 2014. However, problems with his visa kept him effectively out of the team for 7 months, before he was eventually cleared to play in Spain. In 2016, a U.S. correspondent for Marca linked Efford to a loan move to Portuguese third division side S.C. Farense on his Twitter account.
In September 2017, Efford was tried out by Greek Football League side Ergotelis and convinced coach Takis Gonias to sign him for the club. He received the no. 9 jersey and scored on his debut on 25 October 2017, during a Greek Cup 2−4 home loss to Superleague regulars Xanthi. In his twelfth cap with the Cretans in the Football League, Efford scored his first two goals in the competition on March 5, 2018, during a 0−3 away win vs. fellow Cretan side AO Chania−Kissamikos, the first of which he scored just 37 seconds into the game. He also provided the assist for teammate Hugo Cuypers' goal in the 13th minute. Efford followed up his match MVP performance in Chania with another early goal (just 3 minutes in) during the follow-up home match vs. Panachaiki on March 8, 2018. He scored his second brace on April 1, 2018, during a 5−1 thrashing of fellow relegation contenders Panegialios. In total, Efford had a significant contribution to his club's successful Second Round battle out of the relegation zone, scoring seven times in 24 caps, 20 of which he was fielded as a starter.
- As of matches played August 13, 2019
|RCD Mallorca||2014–15||Segunda División||1||0||0||0||—||1||0|
|2019–20||Super League 2||0||0||0||0||—||0||0|
- "Dacula grad Joe Efford earns spot with Spanish pro team RCD Mallorca". Gwinnett Daily Post. July 29, 2015.
- "Botoșani a adus doi brazilieni naturalizați în Olanda! Doi americani sunt în probe" (in Romanian). digisport.ro. June 22, 2014.
- "Un olandez şi doi americani au semnat cu FC Botoşani" (in Romanian). btonline.ro. June 23, 2014.
- "FC Botosani a mai renuntat la trei jucatori" (in Romanian). romaniansoccer.ro. July 22, 2014.
- "Temporada 2014-15 RCD MALLORCA" (in Spanish). futbolbasecatala.ca.
- "DROGS MAKE BIG EFFORD Drogheda United close to signing American striker Joe Efford". The Irish Sun. February 14, 2017.
- "Έκλεισε το ρόστερ του Εργοτέλη" (in Greek). patris.gr. September 11, 2017.
- ""Ξεμπούκωσε" η φανέλα με το 9" (in Greek). Football League News. March 6, 2018.
- "Εμφατικό πέρασμα από τα Χανιά ο Εργοτέλης, 3-0 τον ΑΟΧ Κισσαμικό" (in Greek). sport24.gr. March 5, 2018.
- "Στο 93' ο Εργοτέλης, 2-1 την Παναχαϊκή" (in Greek). sport24.gr. March 8, 2018.
- "Αναφορά αγώνα ΕΡΓΟΤΕΛΗΣ − ΠΑΝΑΙΓΙΑΛΕΙΟΣ" (in Greek). footballleaguenews.gr. April 1, 2018.
- Joseph Efford at Soccerway