One of the best storylines of the 2012-13 season will be following the Celtics-Heat rivalry. It's obvious Boston and Miami don't like each other as teams, and possibly even as human beings.
Rajon Rondo took an indirect shot at LeBron James last week when he endorsed a shirt demeaning the Heat's star player. Rondo posed with a girl wearing a shirt that said, "LeBron is a [Expletive]" during an autograph signing in New Hampshire.
The shirt is sold outside of Celtics games and through SullysBrand.com. This isn't the first time the Celtics have made their dislike for the Heat known this season. Kevin Garnett ignored and stared down Ray Allen when the new Heat guard tried to give him a friendly tap during Tuesday's season opener.
Check out an edited version of Rondo and the inappropriate shirt below, or click here to see an unedited version of it.