Complex sentence: On June 4,2011, Chávez, Jr. defeated WBC Middleweight Champion Sebastian Zbik to win his first world title at the Staples Center in Los Angeles, California, taking a major step toward establishing his own legacy while his famous father looked on.
Split into simpler sentences: On June 4,2011, Chávez, Jr. defeated WBC Middleweight Champion Sebastian Zbik to win his first world title at the Staples Center in Los Angeles, California. Taking a major step toward establishing his own legacy while his famous father looked on.