THE SIDELINES : Dolphins May Share Stadium

Joe Robbie Stadium, where the Miami Dolphins have played football for three seasons, would become the home for a baseball team should a major league franchise be granted to Blockbuster Video baron Wayne Huizenga.

Huizenga, chairman of Blockbuster Entertainment Corp., the nation’s largest video chain, agreed Wednesday to buy 50% of the Joe Robbie Stadium Corp. and a 15% limited partnership in the Dolphins.

“One of the first things we’ll do is explore expansion with Major League Baseball,” Dolphins President Tim Robbie said in making the announcement. “We now have the wherewithal to make renovations for baseball.”

Huizenga would own most and perhaps all of a baseball franchise at the stadium, according to the agreement. Although the price of his partnership was not disclosed, it could be worth more than $75 million, because the franchise is estimated to be worth about $120 million and the stadium was built for $115 million.