Upper Deck has released a statement in response to Topps’ exclusive agreement with MLB re baseball cards. They have re-affirmed their agreement with the MLBPA which is at least half the battle.
The statement is difficult to parse out what with all the positive talk. Phrases like: “looking ahead”, “building the highest quality and most innovative baseball cards” and “looking forward to continuing the partnership”
The upshot of it all is that while Topps can use club logos (including logos on baseball caps), on their baseball cards, Upper Deck cannot.