Dikwa signed with USL side Saint Louis FC on 15 December 2017.[4] He made his debut for Saint Louis on 24 March 2018, coming on as a substitution for Austin Martz in a 2–1 loss against San Antonio FC.[5] Dikwa scored his first goal for Saint Louis on 9 May 2018 during a 6–3 loss to LA Galaxy II.[6]
Pittsburgh Riverhounds
In August 2020, Dikwa joined USL Championship side Pittsburgh Riverhounds SC.[7] He made his debut and scored his first goal for the club on 1 September 2020 in a 3–0 win against Loudoun United.[8] Dikwa was named USL Championship player of the week for week 5 of the 2022 season after notching a goal and an assist in a 4–3 victory over FC Tulsa.[9] In the U.S. Open Cup, he scored the game-winner against Columbus Crew in the 22nd minute, though he later went off with an injury.[10] Dikwa returned to the squad on 8 July, coming on as a substitute for Tola Showunmi at half-time. However, he wasn't able to score and the game ended 0–0.[11] Dikwa won the Golden Boot for the 2023 USL Championship season, leading the league with 20 goals.[12] He became a free agent following Pittsburgh's 2023 season.[13]
Rhode Island FC
After a successful season with the Riverhounds, Dikwa signed with Rhode Island FC for their inaugural season on a multi-year contract on January 18, 2024.[14][15][16] On March 24 2024, he scored his first goal for the club on his second appearance in the form of a brace against Monterey Bay FC.