Up for auction is a premium piece of baseball history: a David Ortiz ("Big Papi") hand-signed Boston Red Sox jersey. This signature is bold, clear, and executed in silver paint marker on the jersey's back number. Authentication: This item is certified by Beckett Authentication Services (BAS) under their prestigious Witnessed Protection Program. This means a Beckett representative was physically present to witness the 3-time World Series Champion and Hall of Famer sign this exact jersey.  • Certification Number: WB24465 • Authentication Type: Beckett Witnessed COA  • Verification: The tamper-evident serial-numbered hologram on the jersey matches the included Beckett COA card and can be verified on the Beckett website