Rory McIlroy of Northern Ireland hits from the sixteenth tee during a practice round for the 99th PGA Championship golf tournament at Quail Hollow Club in Charlotte, North Carolina. Erik Lesser / EPA
Rory McIlroy of Northern Ireland hits from the sixteenth tee during a practice round for the 99th PGA Championship golf tournament at Quail Hollow Club in Charlotte, North Carolina. Erik Lesser / EPA
Rory McIlroy hails Jordan Spieth's 'resilience' as they prepare to do battle at US PGA Championship
Spieth's dramatic Open victory at Royal Birkdale means he needs to win the final major of the year to become the youngest player - and only the sixth ever - to complete a career grand slam.