Officially licensed autographed basketball photo from Boston Celtics star Sam Hauser - authenticated by Dynasty SportsThis officially licensed photo has been hand-signed by Boston Celtics star Sam Hauser. It has been authenticated by Dynasty Sports during a public autograph signing on January 31, 2024.Hand signed by Sam HauserSignature is bold and clear on the photoAuthenticated by Dynasty Sports serially-numbered hologram during public autograph signing - guaranteed to pass JSA or PSA/DNA authentication