On 6 July 2012, Sweeney signed with then-Premier League side Reading. Although he was a member of Reading's Under 21 2013-14Premier League Cup-winning side, on 9 May 2016, Sweeney was released by Reading without having made a first-team appearance for the club.[4]
Exeter City
On 22 July 2016, Sweeney signed with Exeter City as the 1931 Fund fan-funded player after a successful trial.[5] He scored two goals and an assist in Exeter's 5–1 defeat of Notts County on 8 September 2018,[6] and had already scored two additional goals before the end of September 2018.
Swindon Town
On 11 June 2021, Sweeney signed a two-year deal with Swindon Town to begin on 1 July 2021,[7] after rejecting an offer from Exeter City.[8] His contract was terminated by mutual consent on 2 July 2021, with Sweeney stating that 'due to family circumstances at this current moment I am unable to fulfil relocating to be part of the team'.[9]
Exeter City return
Following his abrupt departure from Swindon Town, Sweeney returned to Exeter City on 8 July 2021.[10][11] He was vice-captain as Exeter City secured a return to League One for the first time since 2012. In June 2022, Sweeney signed a new two-year deal with the club.[12]
On 14 January 2023, in his first match as club captain following the departure of Matt Jay, Sweeney made his 300th appearance for Exeter City in all competitions.[13] At the end of the 2022–23 season, Sweeney was chosen as Exeter's Player of the Year.[14]
