When HP Umpire Nic Lentz awarded Indians baserunner Oscar Mercado home plate during Sunday's Boston-Cleveland game, he enforced the penalty phase of 3B Umpire Ron Kulpa obstruction call moments earlier. Article: https://www.closecallsports.com/2021/08/kulpa-lentzs-obstruction-shades-of.html The crew communication of Kulpa's call and Lentz's enforcement of the call mirrored 3B Umpire Jim Joyce and HP Umpire Dana DeMuth's game-ending obstruction call in Game 3 of the 2013 World Series when the umpires ruled that Red Sox 3B Will Middlebrooks had obstructed Cardinals baserunner Allen Craig, awarding St. Louis a walk-off win on Boston's obstruction error. While Boston second baseman Yairo Muñoz's obstruction of Cleveland runner Mercado didn't result in a walk-off error, it did similarly result in a run being awarded to Boston's opponent. This was an example of Obstruction B or Type 2, as in Official Baseball Rule 6.02(h)(2): "If no play is being made on the obstructed runner, the play shall proceed until no further action is possible. The umpire shall then call “Time” and impose such penalties, if any, as in their judgment will nullify the act of obstruction."