There was a point this offseason where it seemed that Nolan Arenado was going to be the third baseman for the Houston Astros. The Astros were one of the few teams that had permission to speak with Arenado as the St. Louis Cardinals looked for him to waive his no-trade clause, and the conversation came after there was a trade agreement in place between the two teams. However, Arenado vetoed the deal, setting the stage for him to open the season with the Cardinals.
Of course, Arenado rejecting the trade turned out to be a blessing for the Astros, as Isaac Paredes, one of the players acquired in the Kyle Tucker trade, turned out to be an All-Star third baseman in Houston this season.