Hailing Sachin Tendulkar [Images] as one of the greatest batsman in cricket's history, Sri Lankan pace bowler Chaminda Vaas [Images] said the ICC [Images] rankings should not be used to judge his worth.

"The ranking does not really count for him. He is a great cricketer and has been scoring runs consistently for more than 15 years. He is a hero for this country. I hope he will contribute more for the country," said Vaas.

The left-arm pacer was commenting about the ICC rankings of all-time greats, where Tendulkar didn't even figure in the top 20.

Vaas, who is in Kolkata [Images], to play for Mohun Bagan in the local season, said, felt Zaheer Khan [Images] has improved a lot following India's tour of England [Images] in 2007.

"Zaheer has improved a lot, especially after playing the series in England. He is bowling in good areas, getting good pace and swing. He is a brilliant bowler for India and has many years to serve the country," he told reporters.

Vaas, who played his first match for Mohun Bagan and made a quick-fire 23-ball 38 (5x4, 1x6) in their quarter-final win over Shambazar, said, "This is the first time I am playing a club match in India. It's a good feeling for me especially when I got some runs and bowled in the right areas. I'm really glad that we won the match and I contributed with both bat and ball."