What the management of HKM Zvolen expects from the newest member of its knightly order is the reinforced variability of the centre position. Moreover, Mitchell should enrich Zvolen´s technically structured offense a healthy amount of boldness and straightforwardness.

In 2009, Mitchell was drafted by Washington Capitals from 175. place. It was the Washington Capitals which enabled him to mark his NHL premiere during the 2016/17 season. Apart from attending a number of summer camps organized by Capitals, Mitchell did not add any other NHL starts. On the other hand, he frequently played for AHL´s Hershey Bears, collecting 120 (57+63) points and 673 penalty minutes.