Spartak Moscow sacked coach Massimo Carrera on Monday, saying the Italian had failed to turn the club around after unsatisfactory results last season.
The 54-year-old former Italy international joined Spartak in 2016, winning the Russian Premier League in his first campaign but finishing third last season.
Spartak Moscow thanked Carrera for bringing the club its first league title since 2001 but said last season's results had been "unsatisfactory" and that "none of the tasks were completed".
"The team's results and game this season have shown there is no trend towards an improvement," the club said in a statement on its website.
Spartak, who are seventh in the league after a 3-2 home loss to Arsenal Tula at the weekend, have appointed Spanish assistant coach Raul Riancho as caretaker manager.
A Message from The Moscow Times:
Dear readers,
We are facing unprecedented challenges. Russia's Prosecutor General's Office has designated The Moscow Times as an "undesirable" organization, criminalizing our work and putting our staff at risk of prosecution. This follows our earlier unjust labeling as a "foreign agent."
These actions are direct attempts to silence independent journalism in Russia. The authorities claim our work "discredits the decisions of the Russian leadership." We see things differently: we strive to provide accurate, unbiased reporting on Russia.
We, the journalists of The Moscow Times, refuse to be silenced. But to continue our work, we need your help.
Your support, no matter how small, makes a world of difference. If you can, please support us monthly starting from just $2. It's quick to set up, and every contribution makes a significant impact.
By supporting The Moscow Times, you're defending open, independent journalism in the face of repression. Thank you for standing with us.
Remind me later.