The world number three from Northern Ireland shot a one-under-par 69 to take him to one under after two rounds.It was McIlroy's first tournament since his final-day disappointment at last month's Open Championship.JJ Spaun carded a 67 to lead on 11 under, with fellow American Troy Merritt and Austrian Sepp Straka one shot back. World number one Scottish Scheffler also missed the cut on one under, as did Scotland's Russell Knox on level par and Justin Rose, who went round in 75 to slip to six over.
