How many times did Yuvraj Singh receive the Man of the Match award?
Yuvraj Singh refers to Player_Name = 'Yuvraj Singh'; receive the Man of the Match award refers to Player_Id = Man_of_the_Match
SELECT SUM(CASE WHEN T2.Player_Name = 'Yuvraj Singh' THEN 1 ELSE 0 END) FROM Match AS T1 INNER JOIN Player AS T2 ON T2.Player_Id = T1.Man_of_the_Match