Sentence:  Yet the capture of Di María, who was the man of the match when Real won a 10th Champions League in May, represents something a <WSD>coup</WSD> for United considering the club are not in Europe's premier club competition and need to strengthen their squad after the team have let five points slip from the first two matches. 
Meaning of the word marked with <WSD> tags:  A quick, brilliant, and highly successful act; a triumph.