'In Test matches I'm very cautious,' admits Sehwag

India's only batsman to hit two triple centuries, opener Virender Sehwag says his penchant to hit big centuries in Tests was driven by critics doubting his calibre in the longer version of the game.

"In Test matches I'm very cautious. I want to score more runs and I want to score big runs and I want to prove everyone wrong because when I came to the Indian team everybody was saying 'He's only a one-day player, he cannot bat in Test cricket'," he said on an ICC talk show.

The Delhi-dasher is currently undergoing rehabilitation after a surgery to be fit for September's ICC Champions Trophy in South Africa.

Often compared to Tendulkar, Sehwag said he always wanted to emulate the little master.

"I wanted to become a Tendulkar, but that's not possible because he is a God of cricket. When I was watching him on television, I tried to copy every single shot."

Sehwag was sent home from England during the ICC World Twenty20 because of a shoulder injury sustained during the second edition of the Indian Premier League.