Sarajärvi, a former pro player, has previously held head or assistant coaching positions in three continents, both in premier club level and national team settings.

Pre-season started well with a good performance against the Scottish giant Glasgow Rangers (loss 2–3) and a 3–1 win against top Swedish club Hammarby IF.

The regular season started also well with two wins but underperformance in the next eight games (6 draws and two losses) lead to sacking of the head coach Mika Lehkosuo.

Led by the head coach Yuri Solano, the goal was to develop the young players into 1st team and help them towards international careers.

After an invitation from head coach Tom Saintfiet, in November 2021 Sarajärvi agreed for a coach-analyst role in The Gambia national team.

On 30 December 2023, newly promoted Estonian club FC Nõmme United announced that they had named Sarajärvi the new head coach on a two-year deal.

[4][5] Sarajärvi also announced that he will continue his work with the Gambia national team as an analyst from distance, until the delayed AFCON 2023 tournament, according to his previous contract.

Sarajärvi is also a researcher PhD student at University of Lisbon, a school that has educated coaches as Mourinho, Caixinha, and Ruben Amorim.