Sources: Gabe Ikard injures hand

NORMAN, Okla. -- Injuries ravaged Oklahoma's offensive line throughout last season. This spring has brought more of the same.

Oklahoma starting center Gabe Ikard injured his snapping hand Sunday during the Sooners' second spring practice, multiple sources told ESPN.com.

The hand is believed to be broken, though the Sooners are expected to get X-ray confirmation. If the hand is broken, as expected, Ikard could miss the rest of spring drills.

Ikard, who has 37 starts in his career, has been a first-team All-Big 12 selection the last two seasons. His injury is just the latest in a string of bad luck for Oklahoma's offensive line. The Sooners lost returning starters Ben Habern (back) and Tyler Evans (knee) to season-ending injuries before the first day of pads last August.

Right tackle Daryl Williams also suffered a season-ending knee injury later in the year, and Ikard (concussion) and left guard Adam Shead (back) were forced to sit out games, too.

Going into spring, the Sooners finally appeared to regain their health up front. Williams and Shead were cleared to return to practice, and Evans also was allowed to take part in some drills.

Until Ikard returns, sophomore Ty Darlington, who filled in at center last season, will step into the starting lineup.