Phoenix, AZ (SportsNetwork.com) - Arizona Diamondbacks pitcher Archie Bradley has been diagnosed with a right sinus fracture, but avoided a concussion after being struck in the head by a line drive during Tuesday's game against the Colorado Rockies.

Bradley will miss at least two weeks after being placed on the 15-day disabled list on Wednesday, though the talented rookie displayed no neurological impairment after undergoing a battery of tests at St. Joseph's Hospital in Phoenix.

"His jaw looks great," Diamondbacks head athletic trainer Ken Crenshaw told reporters following Tuesday's 12-5 Diamondbacks win over the Rockies. "His orbit looks great. Vision is fine. All of those things look really well. It looks favorable."

Bradley was hit near his right jaw by a line drive from Colorado's Carlos Gonzalez in the second inning of Tuesday's contest. The highly touted right- hander remained down on the mound for several minutes before eventually walking off under his own power. Bradley never lost consciousness during the incident.

Arizona's first-round pick in the 2011 MLB Draft and the organization's top pitching prospect, Bradley has gone 2-0 with an impressive 1.80 ERA through his first four major league starts. The 22-year-old became only the fifth pitcher since 1914 to allow two hits or fewer while throwing six-plus innings in two of his first three MLB appearances.

The Diamondbacks recalled reliever Enrique Burgos from Double-A Mobile to fill the available roster spot. The club has yet to announce who will take Bradley's place in the rotation.