The Tampa Bay Rays activated several players off the 60-day disabled list on Monday as they were placed on the 40-man roster in procedural moves. 

The Rays activated pitchers Jeff Niemann, who missed all of 2013 after shoulder surgery, Alex Colome, who had a strained elbow, and Juan Carlos Oviedo, who missed all of 2013 returning from Tommy John. 

The Rays also reinstated outfielder Brandon Guyer, who never played this season due to a broken finger.