THE sky is the limit for record-breaking England batsman Alastair Cook.

That’s the view of his county coach Paul Grayson, after the Essex batsman continued to re-write cricket’s record books yesterday.

Cook became England’s leading century-maker of all time when he passed three figures for the 23rd time in the Third Test against India at Eden Gardens.

The 27-year-old left-hander, who played his club cricket for Maldon as a teenager, also became the youngest batsman in history to pass 7,000 runs as he ended the day on 136 not out.

Grayson said: “Nothing ever surprises me with Cookie. He is so motivated and such a disciplined player.

“Some people say he is a boring player to watch, but I enjoy the way he plays because he has great discipline and assesses the match conditions so well and does what is required.

“He deserves great credit for the way he has played during the last couple of years.”

Grayson said it was a “massive shout” that Cook could become the best batsman since legendary Australian Sir Donald Bradman.

But Grayson did admit: “If he stays fit and healthy and keeps that desire in him to score runs, the world is his oyster. He could break all sorts of records.

“He is the closest player in the way he approaches his cricket to Graham Gooch (England’s all-time leading Test run-scorer with 8,900 runs and Cook’s mentor) that this country has produced in the last 15 years.

“Goochie got better and better with age, and Cookie could play Test cricket for at least another ten years.”