UFC Fight Night 145: Błachowicz vs. Santos was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on February 23, 2019 at O2 Arena in Prague, Czech Republic. A light heavyweight bout between former KSW Light Heavyweight Champion Jan Błachowicz and Thiago Santos served as the event headliner.
Marco Polo Reyes is a Mexican mixed martial artist who competed in the UFC. A professional since 2009, he was also a contestant on The Ultimate Fighter: Latin America 2.