The suspension was the same total given to Youkilis for his role. Both initially appealed, but changed their minds and will begin serving their discipline Wednesday night. Porcello is tentatively scheduled to start next Tuesday night against the Mariners.
In addition, fellow Tigers starter Edwin Jackson received an undisclosed fine. Jackson was not in the game when the fracas occurred, obviously, but was on the field during the aftermath. He was fined for "aggressive actions," according to a release sent out by the Commissioner's Office.
Manager Jim Leyland declined comment.
Porcello threw inside on Youkilis with his first pitch of the second inning, an inning after Miguel Cabrera was hit by a Junichi Tazawa pitch on his left hand and eventually had to leave the game. Porcello's pitch hit Youkilis in the back, and he charged the mound at a surprised Porcello, who spun away from a potential direct hit and threw Youkilis to the ground as both benches cleared. No punches seemingly were thrown.
Porcello said after the game the hit-by-pitch wasn't intentional.
"It was unintentional," Porcello said. "There was nobody on. It's a 3-0 game. I was not trying to hit him intentionally."
Asked if he was surprised by the suspension, the 20-year-old indicated this is all new for him, so he didn't have expectations.
"I've never really been involved in anything like this," Porcello said, "so I didn't really know what to expect. Five games ... right now, there's not much more to say."
Because Porcello is a starting pitcher rather than a position player, five games is somewhat less dramatic than the number would suggest. Most starting pitchers who receive suspensions are given at least that amount so that it affects his status in a five-man rotation.
Because starting pitcher Armando Galarraga was scratched Wednesday with a severe sore throat, the Tigers can survive Porcello's suspension without needing another starter. Assuming Galarraga is back to health in the next few days, he will start Sunday in Porcello's old spot. Zach Miner started in Galarraga's place Wednesday.
When asked about the fine, Jackson said he didn't know about it.
"I got fined?" Jackson asked, somewhat incredulous.
Jason Beck is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.