Ryan, who also is the club's chief executive and president, is to rest at home in Georgetown for several days before returning to work.
The 64-year-old Hall of Fame pitcher was hospitalized in Houston after experiencing discomfort early Sunday at his home. He underwent a series of precautionary tests Monday and the Rangers said the results showed no new developments with his previous heart condition.
He is to continue to be treated with medication.
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UPI Sports Results for September 19, 2014