Final rosters for Opening Day tend to have last minute surprises, be it in the way of injuries, last minute trades, or just "well didn’t see that coming" decisions.
Cases in point include Coco.
The A’s took on an Diamondbacks squad full of highly ranked prospects in their first game of the year. However, it was the Oakland A’s young core that made the bigger impression as they scored 12 runs off Arizona in their home state.