( CNN ) -- Baseball great Nolan Ryan , president and chief executive officer of the Texas Rangers , was to undergo medical tests Monday after being hospitalized a day earlier , the Rangers said . Ryan was hospitalized in Houston , Texas , `` for what is believed to be a recurrence of the heart condition which he has previously experienced , '' the team said in a statement . He was taken to the hospital Sunday after experiencing discomfort Sunday at his home in Georgetown , Texas , the statement said . Ryan expects to be released in a few days , the Rangers said . During 27 years in the major leagues , Ryan threw a record 5,714 strikeouts while playing for the New York Mets , the California Angels , the Houston Astros and the Texas Rangers . In 1999 , he was elected to the Baseball Hall of Fame , which says he had `` a blazing fastball that approached 100mph and a work ethic like none other . '' CNN 's Matt Cherry contributed to this report .
Nolan Ryan was to undergo medical testing Monday . The Yankees are expected to announce the results of their tests on Tuesday. Problem believed to be recurrence of heart condition , team says .