  We investigate the semiclassical limit from the semi-relativistic
Hartree-Fock equation describing the time evolution of a system of fermions in
the mean-field regime with a relativistic dispersion law and interacting
through a singular potential of the form $K(x)=\gamma\frac{1}{|x|^a}$, $a \in
\left( \max \left\{ \frac{d}{2} -2 , - 1 \right\}, d-2 \right]$, $d\in\{2,3\}$
and $\gamma\in\mathbb{R}$, with the convention $K(x)=\gamma\log(|x|)$ if $a=0$.
For mixed states, we show convergence in Schatten norms with explicit rate
towards the Weyl transform of a solution to the relativistic Vlasov equation
with singular potentials, thus generalizing [J. Stat. Phys. 172 (2), 398--433
(2018)] where the case of smooth potentials has been treated. Moreover, we
provide new results on the well-posedness theory of the relativistic Vlasov
equations with singular interactions.
