Great. Way to go, Washington Post. You just had to jinx it for all us Nats fans, didn’t you? In a piece that ran yesterday titled ‘Stephen Strasburg of the Washington Nationals: What makes him a great pitcher?’, your copy editors just couldn’t throw in one “knock on wood” or something? Re-read what your staff writer, Rachel Saslow, wrote: “The fact that Strasburg hasn’t hurt his shoulder yet bodes well for his longevity as a…