article_snippet.sent: De Blasio's, however, was largely booed when De Blasio's was introduced to the crowd.
article_snippet.sent: A year ago, De Blasio's was also booed as De Blasio's threw out the first pitch (a strike).
article_snippet.sent: Both years, De Blasio's sported a Mets cap and jersey, which was emblazoned with De Blasio's last name and the number 6, a tribute to Rico Petrocelli, a longtime shortstop on De Blasio's favorite team, the Boston Red Sox.
article_snippet.sent: Petrocelli, like De Blasio's, was also of Italian descent and lived in Brooklyn.
highlights_snippet.sent: Their families were joined by Mayor De Blasio, who was booed when introduced .
  