Marko Servatius Ghislaine Kleinen (born 27 July 2001) is a Dutch professional footballer who plays as a midfielder for Eerste Divisie club MVV.
Kleinen joined the MVV youth academy from his first club RKSV Leonidas-W in 2011.
He made his professional debut on 30 August 2020, replacing Tim Zeegers in the 79th minute of a 0–0 away draw in the Eerste Divisie against Almere City.
[4] On 13 February 2021, Kleinen made his first ever start for MVV in a 1–0 away defeat to De Graafschap.
[3] Kleinen scored his first goal at senior level on 30 September 2022, starting MVV's eventual 3–2 second-half comeback win over Willem II by curling home a shot into the right-hand corner.