Mumbai (Maharashtra) [India], February 5 (ANI): India's No. 2 ranked player, Sahaja Yamalapalli, pulled off an upset over top seed Kayla Day of the United States, in a three-set battle in the first round of the Mumbai Open WTA 125K Series Tennis Championships on Monday.Ranked No. 335 in the world and playing against a top 100 player for the first time in her career, the 23-year-old wild card entrant put aside the loss of