Abhishek Sharma, India's top-ranked T20I batter, is in the hospital with an upset stomach, raising doubts about his participation in the upcoming match against Namibia. The 25-year-old, who missed training due to the stomach issue, is key to India's chances of defending their title at the 20-team tournament. The explosive left-hander's performance in the lead-up to the tournament has been strong, but his health concerns are a cause for concern. The BCCI official confirms that some tests are being conducted to determine the problem, and it remains uncertain whether he will be discharged today or in the coming days. The match against Namibia is looking doubtful, and his participation in the marquee match against Pakistan is also uncertain. The assistant coach, Ryan ten Doeschate, acknowledges the concern, stating that the batsman still has stomach issues. The team hopes he'll be available for the game in a few days' time, but the situation is still unclear.