2020-21 SP Game Used Hockey Forum

Upper Deck made numerous wrong front/back errors.  The 2020-21 Supreme Glove (checklist is incomplete and missing 9 cards) and Supreme Sticks cards have many mismatched fronts/backs. Since so few were produced it's unclear if they're UERs or ERR/COR.

Here's a Stick with a Glove front example (more can be seen on comc.com):

https://www.tcdb.com/ViewCard.cfm/sid/265643/cid/16336912/2020-21-SP-Game-Used---Supreme-Sticks-SP-MM-Mitch-Marner?PageIndex=1

Here's a Glove with a Stick back example:

https://www.tcdb.com/ViewCard.cfm/sid/265641/cid/16336665/2020-21-SP-Game-Used---Supreme-Gloves-SP-CP-Carey-Price?PageIndex=1

In case you're wondering, here's some correct ones: