Rory McIlroy continued his dream American debut when he booked a place in the quarterfinals of the WGC-Accenture Match Play Championship in Arizona. The Northern Ireland teenager, in his first start as a professional in the United States, made it three wins in as many days as he reached the last eight with a 4&3 victory over Tim Clark of South Africa. Clark cut short Tiger Woods’ comeback from an eight-month injury lay-off with a 4&2 victory over the world number one at the Ritz-Carlton Golf Club on Thursday — but that victory clearly took its toll and McIlroy capitalized to the full.