Rangers ace Yu Darvish left his spring training debut with tightness in his right triceps after pitching a scoreless inning in Thursday's 5-4 loss to the Kansas City Royals.
Darvish, who ended last season on the DL with elbow inflammation, felt tightness warming up in the bullpen. He gave up a single before retiring the next three batters, then left the game for what the Rangers called "precautionary reasons." He will be evaluated again Friday.
Royals prospect Cheslor Cuthbert hit a two-run single off Alec Asher with two outs in the ninth inning to give Kansas City a come-from-behind victory.
Ryan Rua hit a two-run triple, and Robinson Chirinos and Carlos Peguero also drove in runs for the Rangers. Brett Eibner went deep for the Royals.