Both are playing at the CJ Cup on the PGA Tour.
Rory McIlroy and Shane Lowry have work to do at the CJ Cup on the PGA Tour.
Entering round two, McIlroy is 4 under and Lowry is 1 over.
American Robert Streb is out in front on 11 under par.
On the European Tour, Jonathan Caldwell has slipped back to 3 over par in the second round of the Andalucia Masters.
The lead is currently held on 4 under par by Sebastian Soderberg and Julien Guerrier.

Thursday Evening Rugby Update
Thursday Morning Sports Update
Former Liverpool And Blackburn Full-Back Inge Bjornebye Joins Rangers As Football Consultant And Advisor
Lizzy Kent Appointed FAI's New Head Of Women And Girls Football
No Afternoon Session At The PDC World Darts Championship Today
Wednesday Morning Sports Update
Tuesday Morning Sports Update
Niall Kelly Retires From Inter County Football