🚫The obstruction rule prevents fielders from blocking runners without possession of the ball.
🔁Replay can overturn the umpire's safe call if obstruction is involved.
🔄Obstruction calls are not reviewable, but the tag on the base is.
⚠️Obstruction does not require intent; it only requires the fielder to hinder the runner's progress.
⛔The purpose of the obstruction rule is to close the loophole of fielders using their legs to block runners.