World No 3 McIlroy holed out with a seven iron from 170 yards .
World No 3 McIlroy is looking to become just the sixth player to complete the career grand slam by claiming a first green jacket this week .
World No 3 McIlroy , who is looking to become just the sixth player to complete the career grand slam by claiming a first green jacket this week , holed out with a seven iron from 170 yards .