PHOENIX, Sept. 12, 2018 /PRNewswire/ -- Steward Health Care, the nation's largest private, for-profit physician-led health care network, today announced a new partnership with Major League Baseball's Arizona Diamondbacks that will establish the company as a participating partner of the D-backs Give Back Youth Jersey Program. This community outreach program will provide branded jerseys and corresponding caps for 110 youth baseball and softball leagues and 65,000 players and coaches across the state of Arizona in 2019.