Montas was handed an 80-game suspension Friday after testing positive for PEDs, Jon Heyman of MLB Network reports.
This is a huge blow for the Athletics, as Montas has undeniably been their top starter so far this year. He's posted a 2.70 ERA and 1.12 WHIP with a 97:21 K:BB across 90 innings, but he won't be eligible to return until the last week of the regular season in September -- and given how long it'll be since he pitched at that point, Montas likely won't be seen on a mound again until 2020.