Mumbai (Maharashtra) [India], May 3 (ANI): Ahead of his side’s Indian Premier League (IPL) game against Kolkata Knight Riders (KKR), Mumbai Indians (MI) all-rounder Romario Shepherd said that his bowling has not been up to the mark and he has been working to make it better. MI and KKR will be locking horns in a high-octane clash at Wankhede Stadium on Friday. KKR is at the second spot in the points table, with six wins and three losses, giving them 12 points. They won their previous clash against Delhi Capitals. MI is at the ninth spot with three wins and seven losses, giving them just six poi…