Lazio coach Maurizio Sarri paused Lazio training to ask supporters to stop jeering defender Francesco Acerbi.
The Italy international has become figure of hate among a section of Lazio supporters and has been linked with moves to Juventus, Inter and Milan this summer.
However, he is still a Lazio player and Sarri has asked supporters to show him respect.
The clip shows him pause training and march over to a group of supporters to remonstrate while clapping can be heard from another section.