Padres' Francis Pena: Held back in extended ST

Pena was held back in extended spring training, Jonathan Mayo of MLB Pipeline reports.

Pena had a 2.43 ERA, 1.02 WHIP and 64:18 K:BB in 63 innings while climbing from High-A to Triple-A last season. The righty reliever is likely dealing with an injury or building up after being slowed early in camp.