BOSTON (CBS) – The Boston Celtics will try to stay alive tonight when they face the Heat in Miami in game 5 of their Eastern Conference Semi-Final Series. A win by Gang Green sends the series back to the Garden for game six on Friday night.

And if you are truly optimistic, game seven is Monday night in South Florida.

Read: Celtics Big 3 Heavy With Playoff Mileage

Should the Celtics NOT come back to win this series, they can at least put all of those promos stating “It’s all about 18” on the shelf and re-use them next year.

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The Bruins were dealt a blow in their series-clinching win against the Philadelphia Flyers when their best player, Patrice Bergeron, suffered a mild concussion. Bergeron appeared at practice on Tuesday but as a spectator. He did say there has been some improvement and the long layoff between the end of the Flyers series and the start of the Eastern Conference Finals against Tampa Bay certainly will help him in his efforts to return to action.

Read: Bruins-Lightning Eastern Conference Finals Schedule

Speaking of the Lightning, the Bruins were 3-1 against the Bolts in the regular season. That means little, however, when it comes to postseason play, as the Celtics are finding out with the Heat.

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The Red Sox continue to operate like a high-end luxury car with a faulty spark plug. Just when you think they are ready to kick it into high gear, they sputter, wheeze and cough. Three steps forward, one step back.

Read: Blue Jays Beat Red Sox 6-5 In 11 Innings

The upcoming weekend series in the Bronx should shed some light on how far this team has come from the first week of the season when wins were a rumor.

One final thought on the Celtics. Rajon Rondo is one tough cookie.