Due to unusual MLB rule Jansen might be back with the Blue Jays this season

So there is a lot at play. Jansen is the batter that is at the plate when the
@RedSox
and
@BlueJays
game resumes, and he had an 0-1 count. Since the pinch hitter doesn't inherit a 2-strike count, all action will be charged to the pinch hitter.

However, to make room for Jansen, the Red Sox DFA'ed Reese McGuire, who was the starting catcher in the suspended game, meaning there is a high probability that Jansen will come in to catch. (1/3)

That would not only make him the first player to ever play for both teams in the same game, but if he enters at catcher for the restart, will have both batted and caught in the same at bat.

I believe the last professional player to play for both teams in the same game was Dale Holman, who didn't in Triple-A in the 1986 season. (2/3)