With two out and two in the bottom of the 7th inning of the Mets-Brewers Wild Card deciding Game 3, the spectator displaced the protective netting MLB mandated be installed along the infield at all stadiums for fan safety by pushing it toward the playing field, on and over the warning track.
Alonso, tracking the foul fly, failed to catch it as it landed near the fan in question, on the warning track, as 1B Umpire Alan Porter signaled "safe": no catch and no interference.
Does this constitute interference?
The definition of spectator interference states, "Spectator interference occurs when a spectator (or an object thrown by the spectator) hinders a player’s attempt to make a play on a live ball, by going onto the playing field, or reaching out of the stands and over the playing field."
Even though the rule does not specifically address the case of a fan pushing a loose infield net over the field but not themself reaching out of the stands, yes, this play is eligible for spectator interference, which is also a reviewable play (it wasn't challenged). Furthermore, pursuant to Official Baseball Rule 6.01(e), the batter may be called out for the actions of the interfering fan.
With that in mind, what's your call? Video as follows:
With that in mind, what's your call? Video as follows:
