Karnataka skipper R Vinay Kumar displayed in full measure how charged up and energised he is when it comes to locking horns with Mumbai. "It's always good to perform against a fine team. Mumbai are a great side and they have been doing well for many years. Whenever we play them, I take it as a challenge and try and bowl well. Sometimes, I get wickets; at times I may not, but I always take that approach. I am happy when I am doing well against them," he said.

Karnataka captain Vinay Kumar reacts after his hat-trick against Mumbai in the Ranji Trophy quarter-final match at VCA stadium in Nagpur on Thursday. Pic/PTI