Porter took up Castro's argument and became the first uniformed member of the Astros to get ejected this year.
"Whether it was a foul tip or not, realistically I don't know," Porter said. "I didn't even care to go look at it. The point I made to the umpire is that it's too big of a play, too big of a moment, not to check [with other umpires]."
Red Sox reliever Koji Uehara went on to work a 1-2-3 ninth for his 11th save in Boston's come-from-behind win.
Brian McTaggart is a reporter for MLB.com and writes an MLBlog, Tag's Lines. Follow @brianmctaggart on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.