Boston's NBA and NHL teams both called off games, and teams across the nation increased security measures after two bombs exploded near the finish line of the Boston Marathon on Monday. Fans and players alike also observed a moment of silence for victims.
Y! News: Complete coverage of Boston Marathon attacks | Outpouring of help from Boston's residents | Twitter reaction | How to help MINNEAPOLIS, MN - APRIL 15: Mark Trumbo of the Los Angeles Angels of Anaheim stands during the National Anthem following a moment of silence to honor the victims of the Boston Marathon bombing before the game against the Minnesota Twins on April 15, 2013 at Target Field in Minneapolis, Minnesota. All uniformed team members are wearing jersey number 42 in honor of Jackie Robinson Day. (Photo by Hannah Foslien/Getty Images) New York Knicks players and children bow their heads in a moment of silence for the victims of the explosions at the Boston Marathon before an NBA basketball game against the Charlotte Bobcats in Charlotte, N.C., Monday, April 15, 2013. (AP Photo/Chuck Burton) From right, Orlando Magic's Tobias Harris, Andrew Nicholson, Al Harrington, Nikola Vucevic, Kyle O'Quinn and Maurice Harkless observe a moment of silence for the victims of the Boston Marathon explosions before an NBA basketball game against the Chicago Bulls, Monday, April 15, 2013, in Orlando, Fla. (AP Photo/John Raoux)