I've seen my fair share of amazing David vs. Goliath games in my day.

I was glued to the television when Boise State tricked Oklahoma out of a Fiesta Bowl win in 2007.

I was angry beyond belief when a young guard from Marquette took a championship away from the Dallas Mavericks in 2006 and was ecstatic when Luis Gonzalez dumped a Texas Leaguer behind a drawn-in infield to take a World Series away from the New York Yankees in 2001.

These are just a few of some of the great upsets of the decade and after Friday night, there is one more to add to the list - Pittsburgh and Detroit in the Stanley Cup Finals.

However, there is something different about all those other upsets - I was a fan of the respective sport.

After the National Hockey League locked out of the 2005 season, I turned away from the sport entirely.

In my opinion, hockey was the fourth major sport but with a year off it fell away from that status.

Friday night, I remembered why hockey used to be a great sport.

It was the stereotypical underdog matchup - the great hockey dynasty with strong, veteran players and a great defense against the up-and-comers with offensive superstars in search of their first title.

When Detroit took a commanding 2-0 lead in the series, I was sure it would just be another thrashing that wouldn't be worth watching, but when Sidney Crosby, Evgeni Malkin and Marc-Andre Fleury got the Penguins back in it knotted at 2-2 and later took it to game seven, I felt compelled to watch an entire game.

For the first time since Jarome Iginla and the Calgary Flames were knocked out by the Tampa Bay Lightning, there was a hockey game on in my house.

In true underdog fashion, the Penguins knocked off the hockey empire in game seven in a phenomenal thriller.

Pittsburgh took a 2-0 lead into the final period, but Detroit scored with six minutes left, then sent a shot off the crossbar with around two to play. The rest is history.

You never know what you're going to get when two teams take the field - or, in this case, the ice.

This fall as the new sports year begins, I recommend we take the various rankings lightly.

It's fun to look at the rankings and see what the "experts" say about our teams, but until they take the field there are no guarantees.

I've passed on games that turned out to be instant classics, such as the first few games of the Chicago-Boston series of these NBA playoffs, because it wasn't supposed to be good.

I changed the channel when the Orlando Magic had an 18-point lead against the Philadelphia 76ers, before Andre Iguodala brought them back for a last second victory, and I didn't watch game seven of last year's ALCS when the Tampa Bay Rays punched their ticket to the World Series by beating Boston.

In the season of the rankings, it's nice to see, but it's great to see teams annually prove people wrong.

It's happened with the Texas Rangers so far in 2009, and there are a few unranked football teams I look forward to seeing prove the rankings wrong.

No matter what the sport, underdogs are what make sports so great, and for me, Friday night's underdog made the sport of hockey enjoyable again.

So from me to the underdogs of the world - thank you.