The Athletics selected Salinas to their 40-man roster Tuesday.
Salinas registered an underwhelming 5.48 ERA over 67.1 innings this past season with Double-A Midland, but he has racked up 372 strikeouts in 253 career minor-league frames. The 22-year-old right-hander is now protected from being plucked away from the A's in the upcoming Rule 5 Draft.