Bengaluru (Karnataka) [India], February 28 (ANI): A fifty by opener Hayley Mathews helped the Mumbai Indians (MI) post a total of 161/6 after the completion of their 20 overs against UP Warriorz (UPW) at M. Chinnaswamy Stadium on Wednesday. MI openers Yashtika Bhatia and Hayley Mathews came out to bat after UPW skipper Alyssa Healy won the toss and elected to bowl first. Both batters put on a partnership of 50 runs in which Yashtika contributed 26 runs and Mathews contributed 24 runs in the 8th over. Bhatia was sent back to the pavilion after scoring 26 runs as she was dismissed by Grace Harri…