Sentence:  In a raucous atmosphere, it was an unforgiving and physical contest from the start. Grant Hanley conceded the first free-kick within the opening 20 seconds, setting the tone for a busy and thankless evening for <WSD>Serbian</WSD> referee Milorad Mazic. 
Meaning of the word marked with <WSD> tags:  Of, from, or pertaining to Serbia and Serbians.