🏏Rules
mediumIn which year was the Decision Review System (DRS) officially introduced in Test cricket?
A2006
B2008
✓2009
D2011
Answer Explanation
The ICC officially adopted the Decision Review System (DRS) for Test cricket in 2009 after a trial period. It allows teams to challenge on-field umpiring decisions using technology including ball-tracking and UltraEdge; icc-cricket.com.