Evan Grant of the Dallas Morning News reports that Yu Darvish has been diagnosed with a sprained UCL and could be headed for Tommy John surgery.
He'll have further consultation before a final determination is reached, but it's obviously a devastating blow for the Rangers and fantasy owners alike. If that's the course of action, the 28-year-old would miss the entire 2015 season and the start of his 2016 campaign could be in jeopardy as well.