PHOENIX � Los Angeles Dodgers pitcher Hiroki Kuroda suffered a concussion when he was hit in the head by a line drive during a 4-3 loss to the Arizona Diamondbacks on Saturday night, but tests revealed no fracture or internal bleeding.

�Amazingly, things look really pretty good,� Dodgers head athletic trainer Stan Conte said. �The fact that he didn�t lose consciousness is a very good sign.�
Kuroda was to spend the night at St. Joseph�s Hospital for observation.
�We worry about, even though there�s no bleeding now, that there could be in the next 12, 14 hours,� Conte said. �That�s why we want to keep him at the hospital. The first 12-to-24 hours is important. The doctors feel very, very good. In fact, the doctors at the hospital didn�t even want to keep him overnight. We thought it would be best just to make sure.�
A shot off the bat of Arizona pinch-hitter Rusty Ryal caught Kuroda on the right side of his head with Los Angeles leading 3-0 in the sixth inning. The 34-year-old Kuroda crumpled to the mound, clutching his head, as the ball deflected into the seats behind first base.
�One of the first things he asked out there was if anybody caught the ball out there, if it was an out,� Conte said.
All eight Dodgers fielders stood on the mound as trainers tended to Kuroda, who was placed on a stretcher and loaded onto a cart. He raised both of his arms as the cart rolled off the field, and was taken to St. Joseph�s Hospital for tests.
Ryal was awarded a ground-rule double, and James McDonald relieved Kuroda.
Los Angeles led 3-0 at the time of Kuroda�s injury, but the Diamondbacks rallied against the Dodgers� bullpen.