"I stepped on the bag and landed weird," Murphy said. "I landed on my shoulder and neck and put pressure on it. It's just stiff and sore."
He was replaced by Josh Wilson. The two had been sharing second-base duties since the beginning of the season while Jurickson Profar has been on the disabled list with a torn muscle in his right shoulder. Profar has resumed throwing and is taking batting practice daily and could return by the end of the month.
The Rangers are already going with just three bench players while their bullpen is trying to get caught up. They called up pitcher Scott Baker before Wednesday's game and sent outfielder Daniel Robertson back to Triple-A Round Rock.
If Murphy needs to go on the disabled list, the Rangers have veterans Kensuke Tanaka, Brent Lillibridge and Adam Rosales at Triple-A Round Rock or top prospect Rougned Odor at Double-A Frisco.
T.R. Sullivan is a reporter for MLB.com Read his blog, Postcards from Elysian Fields and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.