Some of Major League Baseball's biggest Cuban-born stars put dozens of boys through batting, pitching and catching drills in a sunny Havana ballpark, part of a three-day mission meant to warm relations between the U.S. league and this baseball-mad nation. Among the teachers at Wednesday's baseball clinic were Los Angeles Dodgers outfielder Yasiel Puig, St. Louis Cardinals catcher Brayan Pena and Chicago White Sox first baseman Jose Abreu - defectors who were once reviled by Cuban officials for abandoning the communist-run country but who have returned in triumph following last year's historic detente between the Cold War foes. ''We're going to give our best on this visit and we appreciate the opportunity we've been given,'' said Puig, who left Cuba illegally in 2012. More...