Overview

• Team management has introduced the Bronco run alongside the Yo-Yo test and a 2km time trial under Adrian le Roux, with reports indicating trials are underway rather than fixed pass marks or permanent adoption.
• The Bronco is a continuous shuttle protocol of five sets over 20m, 40m and 60m—totaling 1,200 metres—with no programmed recovery, and is widely described as tougher than the intermittent Yo-Yo.
• Ravichandran Ashwin publicly cautioned that frequent shifts in trainers and testing make adaptation difficult and can lead to injuries, urging a structured handover of 6–12 months between S&C regimes.
• Reports link the change to concerns over fast-bowler endurance on the England tour, where only Mohammed Siraj featured in all five Tests of the Anderson–Tendulkar Trophy.
• Former S&C coach Soham Desai said Bronco, Yo-Yo and the 2km run all assess aerobic fitness and argued for tailored, consistent programming rather than wholesale switches with each coaching change.