The Athletics have designated outfielder Kent Matthes for assignment, according to the team’s transactions page. Matthes’ DFA creates room on the 40-man roster for the recently acquired Justin Marks.
Matthes, 27, was claimed off waivers from the Rockies back in March. Injuries have slowed three seasons of an otherwise promising career prior to 2014. Matthes was a frequent member of Baseball America’s Top 30 prospect rankings and has a career .269/.326/.490 batting line in the minors. However, he’s struggled to a .217/.275/.370 triple-slash through his first 200 plate appearances between Double-A Midland and Triple-A Sacramento.