EE was handling 12"" x 12"" x 18"" wooden blocks & used attached handle to pull block by EE's body. EE inadvertently contacted a second block that had already been placed behind EE. The tip of the Right Pinky Finger was caught in between the two wooden blocks & caused a laceration to the finger's nail bed. Stitches were required to close the wound. EE was placed on work restrictions.