Chips have been down

Ball was coming onto the bat nicely so we knew we had a chance. Suman has been outstanding and so has Rohit Sharma, he has been our Mr Reliable. People may criticize him but he has come good when the chips have been down. We will wait for the outcome of tomorrow's game, not thinking too far ahead now, but the team is doing well after coming out of a 5 game losing streak.

Please explain to me the emboldened parts.