McIlroy on the rise at US PGA

Defending champion Rory McIlroy was right back in contention at the US PGA Championship as halfway leader Jason Dufner fell foul of a tough opening stretch in the final major of the year.

McIlroy had been heading for a second consecutive missed cut in major championships when he stood five over for 11 holes of his second round on Friday, but the former world number one birdied four of the next six to finish level par.