Pat and Ron made it sound like he had some words for the home plate umpire after he struck out. Got thrown out immediately. He had some words towards no one in particular (facing the Cubs dugout) and the umpire acted like a pissy little horsefeathers and tossed him for it
It's probably part that but we're still not very deep in the outfield and I'm guessing they don't want to eat Descalso or Brach's money until they have to - although with the deadline coming, you have to assume they'll have to soon.