Every Major League Baseball team will expand netting to protect fans from foul balls
Baseball Rules fair foul ball - YouTube
Foul ball - Wikipedia
MLB News: Watch Fan Faceplants Into Seats In Epic Fashion for Foul Ball - Inside the Dodgers | News, Rumors, Videos, Schedule, Roster, Salaries And More
Frank Deford: The origin of fair and foul balls in baseball - Sports Illustrated
Hey, Blue! – How Is that a Foul Ball, and Not an Out? - Little League
Fan at MLB game snags foul ball from kid, but the little boy ends up a winner - CBS News