Sharapova later called her father, Yuri, only to find that he was riding his bike in Florida.

WSJ: French Open 2012: Maria Sharapova's Time to Shine

Gloria Wilhelm fought for the Illinois law after her son, Matt, was struck and killed while he was riding his bike by a driver who was downloading cell phone ring tones.

CNN: STORY HIGHLIGHTS

Stevens stayed away from her bicycle for a week and then slowly transitioned from the stationary bike to outdoor riding.

WSJ: Cycling's Occupational Hazard