Rainbow Quiz - Identify the personality - Week 33

Here is the next weekly "Rainbow" quiz , where I would be giving 7 clues (Hence the name Rainbow) about a personality. Try to discover the person in the least number of clues . You can either leave the answer as a comment / email me . Feedback/ suggestions welcome. Googling is not preferred but then its just for fun and so go ahead if you need to.

Cricket is in the air. Here is a quiz on a little known yet amazing cricketer.

clue # 1 : "X" was born in Panama and eventually played cricket for the West Indies.

clue # 2 : "X" has a career batting average in Test cricket of an exceptional 60.83.

clue # 3 : "X" was of medium build, compact, balanced and light on his feet. Like most great batsmen he was a superb back-foot player and seldom made a hurried shot. Sir Leonard Hutton, who saw him at his best in the 1930's, declares he has never seen a batsman play the ball later.

clue # 4 : His brilliant career was cut short by the second world war when no major test series were held.

clue # 5 : X's scoring feats led to his being dubbed the "black Bradman".

clue # 6 : His son appeared in two Test matches for the West Indies and his grandson played fifteen Test matches and thirteen one day internationals for England .

clue # 7 : The 8,000 seat "X" stand at Sabina Park, Kingston, Jamaica is named in his honour.

Who is X ?