Mujica was placed on the minor-league disabled list with a forearm strain Monday, Marc Topkin of the Tampa Bay Times reports.

The 21-year-old was off to a strong start in his first taste of Triple-A action for Durham, tossing 31.2 innings with a 3.13 ERA, 23.9 percent strikeout rate and 7.5 percent walk rate. Tommy John surgeries for fellow prospects Brent Honeywell and Jose De Leon moved Mujica closer to a major-league callup, but now his own future is uncertain.

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