About a dozen Red Sox players wearing Patriots jerseys took the field before Sunday's game between New England and the Pittsburgh Steelers. Jon Lester carried the trophy out. The players and owner John Henry then went over to the Patriots' sideline to greet the New England players, including quarterback Tom Brady.
The Red Sox won their third World Series in 10 years on Wednesday night at Fenway Park.
The trophy made an appearance at the Bruins game on Thursday and the Celtics home opener on Friday. On Saturday, the victory parade rolled through Boston on duck boats.