In January 2007 he reached a career high of No. 13 in the rankings .
Casey has featured in the top 10 of the Official World Golf Ranking and was the highest ranked Englishman for a time .
In January 2007 Casey reached a career high of No. 13 in the rankings .
Casey has featured in the top 10 of the Official World Golf Ranking and was the highest ranked Englishman for a time .