Tolleson (back) is slated to ramp up his activity this week, Marc Topkin of the Tampa Bay Times reports.

EDGE Analysis

Back spasms sidelined Tolleson after his first spring training appearance back on Mar. 3, and he hasn't taken the mound since. The veteran is seeking to carve out a roster spot as a middle reliever this spring, a task that's been made increasingly difficult by his layoff.