In Champions League Twenty-20 cricket, Mumbai Indians will take on England's Somerset in the second semifinal at the M A Chidambaram Stadium in Chennai today.In the first semi-final at Bangalore yesterday, Royal Challengers Bangalore stormed into the finals of the tournament, beating New South Wales by 6 wickets. Chris Gayle and Virat Kohli's 141-run partnership for the 2nd wicket helped Daniel Vettori's side reach a mammoth target of 203 with 9 balls to spare. The final match of the tournament will be played in Chennai tomorrow.