Frost and the Athletics pulled the trigger for the Miller trade thanks to Leo De Vries' inclusion in the trade. Without him, the Athletics likely wouldn't have been interested in a Miller trade.

The San Diego Padres added Mason Miller at the trade deadline. Now, it appears Robert Suarez will opt out of his contract with the team after losing his spot.

This article was originally published on www.si.com/mlb/padres as Padres Could Shift Mason Miller to Starting Pitcher. The San Diego Padres traded a massive prospect package to acquire relief pitcher Mason Miller, a true flame-throwing arm.