There has been much discussion of the concept of the "poison pill" being placed in offer sheets by teams wishing to sign another teams restricted free agent. More specifically as it applies to this site the discussion has centered around the poison pill that NE placed in their offer sheet to Welker which in turn forced the Dolphins to trade Welker. The poison pill of course is nothing more then wording placed in an offer sheet that makes it cost prohibitive for the players current team to match the offer. Wording in the past that has been used basically stated that if the player plays a certain number of games in any given season in a given city or state that his entire contract will be guaranteed or accelerated to a much higher level. I had speculated in other discussions that it might have possibly been wiped out, the ability to use it that is, by the new CBA. There had been discussion of language being placed in the new CBA barring teams from doing so in the future but with all the other larger issues at hand I never read anything confirming it. Previously there had been a "gentlemen's agreement" among the owners to stop using the practice. Based on this article that does not cite the actual CBA but "a source with intimate knowledge of the new CBA" this is exactly what has happened. According to this source "The ability of one team to sign a player to an offer sheet and include a term that would, for example, make the entire amount of the contract fully guaranteed if the player plays more than four games in the stadium where his current team plays, has disappeared."