Shane Lowry is just four-shots off the lead as the BMW Championship reaches halfway at Wentworth.
He shot a second round 66 and is in the clubhouse on 8-under par.
Overnight co-leader Kiradech Aphibarnrat is again the man to catch on 12-under.
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Graeme McDowell is 4-under after a 69.
Out on course, Jonathan Caldwell is 2-under.
Cormac Sharvin and Padraig Harrington will both miss the cut on 1-over and 3-over respectively.
