Following his release by West Ham, Potts signed for League Two club Luton Town on a two-year contract. He made his debut in a 3–1 win at home to newly promoted Championship club Bristol City in the League Cup first round on 11 August 2015. Potts suffered a hamstring injury at the end of August, making his return in a 2–1 defeat away to League One team Gillingham in the Football League Trophy second round on 6 October. He replaced Scott Griffiths in the team after Griffiths' wife gave birth to their son, making four league appearances in October. However, in the last of these matches, a 2–1 defeat at home to Plymouth Argyle, Potts picked up an injury and was substituted after 28 minutes. His next appearance did not come until 5 March 2016 when he started in a 1–0 win away to Leyton Orient in place of the injured Jake Howells. Potts then started the next two matches, but sustained an ankle injury during the latter match, a 1–0 win away to Plymouth Argyle. He made his return from injury on 9 April, starting in Luton's 2–0 defeat at home to Accrington Stanley. Potts retained his place in the team for the remainder of 2015–16 and finished the season with 16 appearances.
International career
As his father was born in the United States, Potts was presumed eligible to play for both the England national football team and the United States men's national soccer team. Potts was invited and took part in a United States under-20 camp in 2011. He made his debut for the United States under-20 team as a substitute, playing 21 minutes in a 2–1 defeat to France in a friendly in Vichy. However, in April 2012, U.S. Soccer officials determined that Potts was not eligible for U.S. citizenship, as his father did not meet residency requirements to pass along citizenship to his son, meaning he could no longer play for the United States at any level. Potts played the first half for the England under-18 team in a 3–0 win over Poland at Crewe's Alexandra Stadium on 7 March 2012. Later that year, he progressed to the England under-19 team, playing the full 90 minutes in a 1–0 win over Finland in a friendly on 13 November. On 21 March 2013, Potts played another full 90 minutes in a 1–0 win over Turkey. On 28 May 2013, he was named in manager Peter Taylor's 21-man squad for the 2013 FIFA U-20 World Cup. Potts made his England under-20 team debut in a warm-up match on 16 June as a 45th-minute substitute in a 3–0 win over Uruguay. He played the full 90 minutes of England's first Group E match, a 2–2 draw with Iraq on 23 June. Three days later, Potts conceded a penalty as England drew 1–1 with Chile. After receiving a yellow card in the first two group matches, Potts was suspended for the final group match against Egypt, which England lost 2–0, and were eliminated from the competition after failing to win a match.
Personal life
Potts is the son of former West Ham United captain Steve Potts and attended Marshalls Park School in Romford. At 12-years-old, Potts was diagnosed with leukaemia. However, just before his 16th birthday he was given the all clear.