In general, probably not. But this isn't a typical 1099 employee suit.
Further, the LIV golfers who sued entered into evidence as part of their suit, internal PGA documents, player handbooks, by laws, etc. The PGA Tour's claim is if LIV did that and are suing on the grounds that they are being harmed by how the PGA Tour operates, then it's only fair that LIV's contracts and by laws are also now available. The LIV golfers suit is predicated on this notion of irreparable harm from being blocked from the PGA but as we found out in the injunction hearing a few weeks ago, it appears LIV contracts actually compensate based on the expectation of lost PGA income.