Law has 68 first-class centuries to his credit

The Australian has expressed an interest in playing for England once he has been granted British citizenship.

The 36-year-old averages 51 in the first-class game and was the leading run-scorer last season.

Graveney told BBC Sport: "I was at Hove on Thursday and saw Law bat against Sussex and there is no doubt he is an exceptional player. But he is 36."

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Law, in his second season at Lancashire, expects to become a British national by the end of the year.

Graveney added: "He will not qualify to play for England until at least next year so it would be wrong for me to comment on it now.

"He is a fantastic player and a great asset to Lancashire so we will just have to wait and see what happens at the end of the season.

"We deal in runs and wickets and he is doing nothing wrong in that respect."

Law believes his chances of an England call are slim on the grounds of age, but weighed against that is his phenomenal batting record. "If the opportunity arose, it is a chance to play Test cricket," he said.

"I am not counting any chickens. It is not that I don't want to play, but I think it would be ridiculous for a 36-year-old to play ahead of some good young players coming through."

He is the outstanding player of my era in county cricket Sussex skipper Chris Adams

His only previous experience of Test cricket came in December 1995 when he made an unbeaten 54 as Australia beat Sri Lanka by an innings and 36 runs in Perth.

Law also played 54 one-day internationals, the last of them in 1999, but retired from Australian cricket at the end of the 2003-04 season having been named Queensland's Player of the Year.

If given a chance by England, it could come against Australia in next summer's Ashes series.

"I could play against a few of my best mates - that would be interesting," he added.