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Pitcher Roy Halladay was the only Toronto Blue Jay named to the American League all-star team. ((Adrian Wyld/Canadian Press) )

The game's brightest stars descend on Yankee Stadium on July 15 for the 79th mid-summer classic.

Home Run Derby - July 14

Who's swinging for the fences?

Official Derby Rules:

An out is registered when a player swings at a pitch and does not hit a home run.

A ball hit over the fence must be fair to count as a homer.

Opening Round

Each player gets 10 outs to hit as many home runs as possible.

The four players with the most home runs hit in the opening round advance to the semifinals.

Semifinal Round

Unlike previous years, home runs do carry over from the opening round.

Each player gets 10 outs to hit as many home runs as possible.

The two players with the most home runs advance to the championship round.

Championship Round

Home runs from the first two rounds do not carry over to the championship round.

Each player gets 10 outs to hit as many home runs as possible.

The player who hits the most homers in the championship round is declared the winner.

AMERICAN LEAGUE

Starters

Pitchers

Reserves

** Injured, will not participate

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Houston Astros first baseman Lance Berkman will start for the National League and compete in the home run derby. ((Harry How/Getty Images) )

NATIONAL LEAGUE

Starters

Pitchers

Reserves

** Injured, will not participate

++ Named as replacement