sentences:  Porcello became the first Tiger to pitch back-to-back shutouts since Jack Morris in 1986.He became the first Major League pitcher to throw a shutout without a walk or a strikeout since Jeff Ballard on August 21, 1989.In a more recent distinction, he became the first Major League pitcher to throw a no-strikeout shutout since Derek Lowe did it for the Indians on May 15, 2012.