Elizabeth Horrocks: Decision Review System

The bowler has a dreadful pout:
The umpire's gesture means not out!

The batter sports a silly grin,
Because that means that they’re still in.

But wait! The captain in the field
Has let them know it’s been appealed.

In former days, you will recall,
This would have cut no ice at all.

But nowadays the sorry mess
Is sorted out by DRS.