Ipswich Town Dozzell is a product of the Ipswich Town youth academy. Born in Ipswich, he joined the youth set-up at his home town club at the age of eight. He worked his way through the youth system at Ipswich, signing his first scholarship with the club in 2013. In April 2016, he was rewarded for his fine form in Ipswich's youth squads with the club's Academy Player of the Year award for the 2015–16 season. On 16 April 2016, Dozzell made his professional debut for Ipswich Town aged 16 in a Championship match against
Sheffield Wednesday at
Hillsborough, coming on as a substitute at half-time. He scored the equalizing goal for Ipswich on his first-team debut, his first senior goal, matching his father
Jason's achievement of scoring on his senior debut, also for Ipswich at the age of 16 in 1984. He made his first league start in the following league match against
Fulham on 19 April, in a 1–1 draw at
Portman Road. He made nine appearances in total during the following season, including six league starts. On 5 August 2017, Dozzell tore his cruciate ligament during the opening game of the 2017–18 season against
Birmingham City at Portman Road, and was ruled out for the rest of the 2017–18 season. After recovering from the cruciate ligament injury he suffered at the start of the 2017–18 season, Dozzell returned to first-team action during the 2018 pre-season, featuring regularly in friendly matches while completing his injury rehabilitation. He made his return to the Ipswich first-team on 2 October 2018, featuring as a second-half substitute in a match against
Middlesbrough, his first appearance in over a year. Dozzell saw his first-team involvement increase during the 2018–19 season, making 21 appearances in all competitions, including scoring in a 3–2 victory over
Leeds United at Portman Road in the final game of the season. He made his first appearance of the 2019–20 season as a substitute in a 1–1 draw with
Sunderland on 10 August. After finding regular game time harder to come by during the early part of the season, he scored his first goal of the season on 9 November, scoring the equalising goal in a 1–1 draw with
Lincoln City in an
FA Cup first round tie at Portman Road. He found game time limited during the 2019–20 season, starting only 8 games in the league. In total, he made 15 appearances over the course of the season, scoring once. Dozzell managed to force his way into a starting position in the first-team from early on in the 2020–21 season, changing his role to play primarily as a
holding midfielder. He played every minute of the opening 11 league games of the season, until receiving a 72nd minute red card in a match against Sunderland at the
Stadium of Light on 3 November, resulting in a three-match suspension. After serving his three-match suspension, he returned to the first-team on 28 November, starting in a 0–2 loss to
Charlton Athletic. On 4 December 2020, it was announced that Dozzell had signed a new three-year contract with Ipswich. Dozzell finished the season having made 46 appearances, more than any other Ipswich player during the season, whilst also making more starts than any other player. He scored his first league goal for the West London side in a 2–0 win away to
Middlesbrough on 2 September 2023. Dozzell joined Championship rivals
Birmingham City on 19 January 2024
on loan for the rest of the
2023–24 season. He played regularly under
Tony Mowbray's management, scoring the winning goal against
Blackburn Rovers and reportedly "dictat[ing] the play" as Birmingham came from behind to beat
Sunderland in mid-February. However, after Mowbray took medical leave and the team slipped down the table,
Birmingham Live Alex Dicken thought Dozzell was "found wanting in the grind of a relegation battle", and
BBC Sport's Nick Mashiter thought he "made little impact" as Birmingham failed to avoid the drop to League One.
Portsmouth After a trial with
Sheffield United went well but did not lead to a contract, Dozzell joined
Portsmouth, newly promoted to the Championship. He signed a 12-month deal with a club option for a second year. The club exercised the extension option at the end of the
2024–25 season. ==International career==