So is yours lol.
Adidas snagging talent as Serena crashes/burns isn't surprising, it makes a lot of sense. I also don't think it has anything to do with Kap. Of course Adidas is likely planning some type of Kap-like move, I just don't believe it's this.
Sports deals often begin with a handshake agreement that if an athlete achieves something, like winning a major golf tournament for instance, he or she will be offered a deal; oftentimes it'll be a match+20, ie "we'll match what Nike is offering, plus give you something extra." This could have been in the works as much as a year ago, with Adidas waiting for her to have her big breakout moment.