Bulgarian coach Vissizar Popov has officially parted ways with Sisaket FC on good terms after mutual agreement with the management of the club, according to the announcement from the Thai League 1 side.
His decision was announced after the 3-0 defeat to Nakhon Ratchasima on Sunday, however it was not until Tuesday that the 41-year-old officially had a meeting with the club managers and handed in the resignation to withdraw from the coaching responsibility.
Popov returns to the Thai League 1 as Sisaket FC head coach in March 2017, after last coaching in the country in 2014 with Suphanburi FC. After that, he left the country to take up the Maldives national team head coach post in 2015.
He then joined Malaysia Super League side Kelantan in 2016, and successfully guided them to a fourth-place finish in the league, even took the Red Warriors to the quarter-final stage of the 2016 Malaysia Cup.