Majestic On-Field Authentic FlexBase New York Mets jersey, signed on the back in silver marker by 2019 NL Rookie of the Year Pete Alonso.

The jersey is size 48 which is the best size for framing.

Signed at an official paid private autograph session.

Affixed to the jersey is a numbered tamper-proof hologram from MLB Major League Baseball Authentication (which proves that the jersey was signed during Alonso’s Rookie Season.

Sold with Certificates of Authenticity from both The Autograph Source and independent third-party Beckett Authentication Services (BAS). 

The Beckett Authentication certificate is a “ROOKIE AUTHENTICATION” which documents that the signature was signed during the player’s Rookie MLB season.