Vote your top moment for 2011

In celebration of ESPN The Magazine's anniversary, we want you to help select the most significant moment for each of the Mag's 15 years. SportsNation will decide the top moment, to be revealed in the May 3 issue.

Dallas Mavericks

With Dallas down by 15 points in the fourth quarter of Game 2 of the NBA Finals, Dirk Nowitzki sparks a comeback against the Heat. The Mavs go on to beat Miami's Big Three for the team's first championship.

NFL lockout

NFL labor issues lead to a 136-day lockout -- the longest in league history. Before regular-season games are missed, players and owners approve a new collective bargaining agreement, implementing rookie wage scales as well as new practice rules regarding player safety.

MLB's September stunners

On the final day of the regular season, stunning finishes happen minutes apart to decide the AL playoff race. Rays third baseman Evan Longoria hits a walk-off home run to beat the Yankees in the 12th, and the Orioles score twice in the ninth to stun the Red Sox. Boston becomes the first team to blow at least a nine-game lead in September.

Penn State

Former Penn State defensive coordinator Jerry Sandusky is arrested and charged with more than 50 counts of child sexual abuse of 10 boys who were part of his Second Mile organization for troubled youths. Penn State vice president Gary Schultz and athletic director Tim Curley face charges of obstruction, child endangerment and conspiracy to cover up Sandusky's crimes. Penn State's Board of Trustees fires legendary coach Joe Paterno, who passed Eddie Robinson for most wins weeks earlier and planned to retire at season's end, as well as university president Graham Spanier.

Tim Tebow

Quarterback Tim Tebow takes over the 1-4 Broncos and leads the team to a winning record and a postseason appearance. Tebow's 80-yard touchdown pass to Demaryius Thomas in overtime of the AFC wild-card game is the longest OT postseason touchdown in NFL history. Tebow-mania grips the nation.