Which cricketer will break sehwag fastest triple hundred record in test cricket

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Harry brook young talented batter came front from English team,his abality to score outstanding in test cricket, Fairless player he has for English team, sehwag fastest triple hundred record is still unbroken,he made his fastest triple hundred against south Africa in India condition,he completed his triple hundred only on 278 balls in test cricket, sehwag also smached Pakistani bowler in Multan test in past he also made his triple hundred against pakistan also he scored brilliantly 309 against pakistan at Multan,still sehwag fastest triple hundred record is not broken ,but two young talented batter came front from English team and indian team respectively in shape of brook and pant,but unfortunately pant is not available for team due to accident, only brook is doing well with bat in test cricket,.

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