Javier Assad becomes latest pitcher to go on IL; Cubs sign reliever Vinny Nittoli

SAN FRANCISCO — The Cubs’ pitching staff suffered another hit Thursday as right-hander Javier Assad landed on the 15-day injured list with a strained right forearm.

The Cubs signed reliever Vinny Nittoli — who took part in spring training with them last year and played 16 games for Triple-A Iowa — to fill Assad’s vacated spot on the active roster. They also transferred reliever Yency Almonte (strained right shoulder) from the 15-day IL to the 60-day to clear a 40-man roster spot.

Assad...