Adelaide United On 21 February 2020, Yengi made his debut for
Adelaide United coming on as a substitute in the 67th minute in a 5–2 defeat to the
Western Sydney Wanderers, the club he would join two years later. On 13 March 2021, he scored a goal and registered an assist against
arch-rivals Melbourne Victory, with Yengi celebrating his goal by leaping over advertising hoardings and celebrating in front of Melbourne Victory supporters.
Western Sydney Wanderers On 12 November 2022, Yengi, after an assist from
Milos Ninkovic, scored the only goal to beat
Sydney FC and win the Sydney Derby for the
Western Sydney Wanderers, from then Yengi has scored in both Sydney Derbys at Allianz Stadium obtaining and assist from
Amor Layouni.
Portsmouth On 2 July 2023, Yengi signed for
EFL League One club
Portsmouth for an undisclosed fee. He scored the equaliser on his debut against
Bristol Rovers on 5 August; the match finished 1–1. Three days later, he scored a brace in a 3–1 win over
Forest Green Rovers in the first round of the
EFL Cup. He departed the club upon the expiration of his contract at the end of the
2024–25 season.
Aberdeen On 8 June 2025, Yengi agreed to join
Scottish Premiership club
Aberdeen on a free transfer from 1 July. On 29 January 2026, he joined
J1 League club
Cerezo Osaka on loan for the remainder of the season. However, he required thigh surgery and is due to return to Aberdeen. ==International career==