Graeme McDowell best of the Irish in CJ Cup; Paul Dunne under pressure to retain European Tour card

Graeme McDowell is five under par at the halfway stage of the CJ Cup, the US PGA Tour-sanctioned tournament in South Korea.

Graeme McDowell is five under par at the halfway stage of the CJ Cup, the US PGA Tour-sanctioned tournament.

A nine-under-par round of 63 has sent Justin Thomas to the top of the leaderboard at the tournament in South Korea.