MIAMI--The Miami Heat were visibly rattled by the playing of “Welcome to the Jungle” on the TD Garden loudspeakers prior to tip-off in Tuesday’s game against the Boston Celtics, saying the choice of songs “proves the Celtics mean business.” “Wow, ‘Welcome to the Jungle‘? That’s harsh,” guard Dwyane Wade was overheard saying to a teammate. “Geez, they really mean business. Couldn’t they have gone with ‘Who Let the Dogs Out?’ or something?‘Welcome to the Jungle’ is so…angry. Oh God. I have a bad feeling about this night. I think we’ve stepped into the lion’s cage. We’ve stepped into the jungle.” The Heat were later rattled by a thunderous chant of “Defense” by the home crowd.