with Columbus Crew prior to the start of the MLS season. Terms of the transfer were not disclosed. His 2016 base salary was $425,000. Kamara made his club debut 9 April 2016 in a 2–0 loss to Montreal Impact, replacing Kei Kamara in the 70th minute. He started his time with Crew SC as the backup to Kei Kamara, but jumped into the starting role when Kei was traded to the New England Revolution. His first goal for the Crew was against Real Salt Lake on 28 May, adding two more to complete the hat trick. Kamara ended his first season outside Europe with 16 goals and two assists in 25 MLS appearances. LA Galaxy After two successful seasons with Columbus, in January 2018 Kamara was traded to LA Galaxy in exchange for Gyasi Zardes and $400,000 in targeted allocation money. LA sent an additional $100,000 in TAM to the Crew after Kamara passed the 12-goal mark last season. After the arrival of Zlatan Ibrahimovic to the Galaxy, Kamara wanted to pursue other options elsewhere. LA Galaxy General Manager Dennis te Kloese in a club statement. “Ola wanted to pursue opportunities elsewhere, and we worked to complete a move that will give us options to strengthen our roster moving forward. We thank Ola for what he has contributed to this club and wish him the best in his future.” Shenzhen paid the Galaxy a $3.5 million transfer fee for Kamara, who signed a three-year contract with the club that would pay him $3 million net per year. Shenzhen On 27 February 2019, Kamara transferred to Chinese Super League newcomer Shenzhen. D.C. United After an unsuccessful spell in China where he only made six appearances for Shenzhen, Kamara returned to Major League Soccer, joining D.C. United for a transfer fee of $2.5 million. D.C. United also sent $200,000 of General Allocation Money to Colorado Rapids in exchange for the No.1 slot in the 2019 Allocation Ranking, allowing them to select Kamara. He appeared the first time for DC United after being subbed on for Wayne Rooney in the 74th minute of the Vancouver Whitecaps game on 17 August 2019 In his first start for DC, Kamara scored his first DC goal in the 55th minute against the New York Red Bulls on 21 August 2019. In only his third start for DC United, he scored two goals against the Montreal Impact