"Law 10: Covering the pitch". The pitch is said to be 'covered' when the groundsmen have placed covers on it to protect it against rain or dew. The Laws stipulate that the regulations on covering the pitch shall be agreed by both captains in advance. The decision concerning whether to cover the pitch greatly affects how the ball will react to the pitch surface, as a ball bounces differently on wet ground as compared to dry ground. The area beyond the pitch where a bowler runs so as to deliver the ball (the 'run-up') should ideally be kept dry so as to avoid injury through slipping and falling, and the Laws also require these to be covered wherever possible when there is wet weather.