By JOE REEDY
AP Sports Writer
Seven months after Peyton and Eli Manning provided a template on how alternate broadcasts could succeed, Alex Rodriguez and Michael Kay think they can improve on it. The “KayRod Cast” with Rodriguez and Kay debuts Sunday night on ESPN2 when the Boston Red Sox take on the New York Yankees. It will be the first of eight this season that will take place while “Sunday Night Baseball” airs on ESPN. Rodriguez and Kay are longtime friends. Kay has broadcast Yankees games since 1992 while Rodriguez spent 12 of his 22 major league seasons in pinstripes.