Four days past Yelich's positive, so, depending on when both samples were actually taken, it's possible the exposure was simultaneous to Christian's OR from a separate incident. For baseball purposes, I think you'd rather the exposure be the same, given that you'd be getting closer to the end of incubation. I'd say baseball's COVID issues are partly Delta and bad timing and partly MLB's (legitimate, I think, given available info at the time) preference for J&J. Good news is, all these guys SHOULD avoid serious illness and be back in the order of a minimal IL stint.