The Houston Astros had a trade in place with the Washington Nationals to acquire Bryce Harper, but ownership of the Nationals refused to approve the move.
The Astros were eventually eliminated from the ALCS in five games by the Boston Red Sox.
The Nationals would have acquired J.B. Bukauskas and two other prospects from the Astros.
The package was far better than the compensatory pick the Nationals will receive after the fourth round of the 2019 draft if Harper turns down their qualifying offer on Monday.
Harper rejected a 10-year, $300 million offer from the Nats on the final day of the regular season.