Cleveland Indians starter Carlos Carrasco earned an eight game suspension from the league after throwing at Kevin Youkilis' head on Tuesday. Ironically, that start on Tuesday was Carrasco's first of the season after serving a six game suspension to start the year after throwing at Billy Butler in a 2011 game.
Carrasco probably won't end up serving the suspension right away, because the Indians demoted him to AAA Columbus on Wednesday. A player is allowed to play in the minor leagues with a major league suspension hanging over his head, so Carrasco would be eligible to pitch for Columbus, but would need to serve the suspension before he's able to play in the majors again.
Due to a pair of rainouts this week against the Yankees and an offday on Monday, the Indians can go without a fifth starter until next weekend if they really wanted to. However, I'd expect them to bring someone up (possibly Trevor Bauer, who was a disaster in his one start this year) before then. The team has plenty of options with Carrasco, Bauer, and Corey Kluber in AAA, and Scott Kazmir on the DL still recovering from a strained ribcage muscle, but I think Bauer would eventually end up getting the nod if Kazmir's ribcage isn't healthy.