Rory McIlroy heads back to range after slipping off BMW Championship pace in second round at Bellerive

Rory McIlroy struggled in the second round of the BMW Championship at Bellerive, carding a 69 to improve his total by only one shot after a strong six-under-par opening round. American Wyndham Clark took the halfway lead as McIlroy slipped off the pace. Following his round, McIlroy headed to the driving range to work on his game ahead of the weekend rounds.