Uncertainty remained on the availability of dashing opener Virender Sehwag for India's make-or-break World Cup quarterfinal match against defending champions Australia tomorrow, Indian skipper Mahendra Singh Dhoni said on Wednesday. "We will take a call on Virender Sehwag late this evening or tomorrow morning before the start of the game. All the others are fit and available for selection," Dhoni said at the match-eve media conference at the Sardar Patel Stadium in Motera in Ahmedabad. Sehwag, who lit up the tournament with a breathtaking 175 against Bangladesh in the opening match at Mirpur on February 19, missed India's last Group B tie against the West Indies at Chennai on March 20 after aggravating his old knee problem during the course of the tournament. He played last against South Africa at Nagpur on March 12, scoring a half century. Dhoni said the Indian team would certainly miss Sehwag if he is unable to play tomorrow against the world's top-ranked ODI outfit.