Karachi (Pakistan), Feb 19 (ANI): New Zealand batter Rachin Ravindra is in doubt for their Champions Trophy opener against Pakistan on Feb 19.While the elegant left-hander took part in a net session in Karachi on Tuesday, the 25-year-old is still recovering from a nasty blow to his forehead sustained during a tri-series match in Lahore earlier this month.Ravindra's potential absence adds to a lengthening injury list for the Black Caps, with fast bowler Lockie Ferguson ruled out on the eve of the tournament with a foot injury, and fellow quick Ben Sears also missing from the first game with a hamstring injury.