On 26 June 2020, it was announced that Grant would leave Chelsea upon the expiry of his contract at the end of the month.[8]
Bristol Rovers
On 18 July 2020, Grant signed for League One club Bristol Rovers, signing a three-year deal.[9] He made his debut for the club on 5 September 2020, in a 3-0 League Cup defeat to Ipswich Town.[10] On 14 November, Grant scored his first goal for the club, halving the deficit to 2–1 in an eventual 4–1 defeat to Fleetwood Town.[11]
Grant featured in all of Rovers' first ten matches in all competitions for the 2021–22 season before a recurring foot injury that he had suffered with the previous season forced him out of action.[12] His return to action came on 7 November in a 2–2 FA Cup first round draw at League One Oxford United, Grant being utilised in a less-familiar left wing-back role in which he impressed.[13] His first league match back came the following week, Grant scoring his first goal of the season when he headed home a Harry Anderson cross at the back post to equalise as the Gas came from behind to defeat Northampton Town.[14] Despite an impressive run of form over the winter months, Grant again suffered from injuries, this time in the knee, that saw him ruled out for a number of weeks in February.[15] Grant made a return to first-team action in April 2022, the season ending in success as Rovers were promoted on the final day of the season, a 7–0 victory over Scunthorpe United seeing Rovers move into third place on goals scored.[16]
Having been limited to just ten minutes of action in the opening weeks of the 2022–23 season, manager Barton revealed in October 2022 that knee surgery would potentially be required.[17] Having undergone the surgery the same month, Grant was ruled out of action for the remainder of the season.[18] He was offered a new contract at the end of the season.[19] On 25 May, it was confirmed that he had been signed a new one-year contract with the option for a further year.[20]
Prior to the commencement of the 2023–24 season, it was confirmed that Grant was returning to full training having featured in only one pre-season friendly.[21] He made his return to first-team football as a substitute on the opening day of the season, his first appearance in nearly twelve months.[22] He was released by the club at the end of the 2023–24 season.[23]