Arsenal In July 2015, Osei-Tutu joined the
youth academy of Arsenal from
Reading. He signed his first professional contract in October 2015.
Loan to VfL Bochum In June 2019, it was announced that he would join German second-division club
VfL Bochum on loan for the
2019–20 season. On 9 July 2019, in his second appearance for Bochum, Osei-Tutu was racially abused in a friendly against Swiss club
St. Gallen, causing him to temporarily leave the field of play. Osei-Tutu made his professional debut for Bochum in the
2. Bundesliga on 28 July 2019, starting in the 3–1 away defeat against
Jahn Regensburg. He scored his first goal in his professional career in a 3–1 win over
SV Wehen Wiesbaden on 24 August. Over the course of the loan spell, Osei-Tutu made 21 appearances, scored five goals and provided three assists.
Loan to Cardiff City On 25 August 2020, Osei-Tutu joined
Championship side
Cardiff City on a season-long loan deal. He made his debut in a 3–0 loss against
Northampton Town in the first round of the
Carabao Cup on 5 September 2020. After seven appearances, he had suffered a serious hamstring injury in mid-October and kept him out of the team since then.
Loan to Nottingham Forest On 10 August 2021, Osei-Tutu moved to Championship club
Nottingham Forest on a season-long loan. On 6 January 2022, his loan was terminated after struggling with injuries during his spell at the club.
Loan to Rotherham United On 31 January 2022, Osei-Tutu moved to
EFL League One club
Rotherham United on loan until the end of the season.
Return to VfL Bochum On 23 June 2022,
VfL Bochum announced the return of Osei-Tutu on a free transfer, with Osei-Tutu signing a three-year deal.
Loan to PAS Giannina On 22 January 2024, Osei-Tutu moved on loan to
PAS Giannina in Greece.
Bolton Wanderers On 8 August 2024, Osei-Tutu signed for League One club
Bolton Wanderers for an undisclosed fee on an initial two-year deal. ==Personal life==