Looks like Matt Lawton is the "big" name.
Sources have told Deadspin.com that Matt Lawton has tested positive for steroids.
So, this is the notable AL outfielder who has tested positive? According to the report, Lawton is currently appealing the suspension, which is why there has been no announcement from MLB. Nov. 2 - 1:57 pm et
Source: Deadspin.com