A suture anchor for fixation of soft tissue to bone with a body formed of biological material, such as collagen, and a suture eyelet extending through a cannulation of the body. The body may be in the form of a cannulated member or multiple cannulated members. The suture anchor is placed into a pilot hole and, by combination of shape distortion, friction or insertion force, is fixed in place. Sutures are used to re-approximate tissue to bone.