Methods and devices are provided for attaching soft tissue to bone. In general, a deployment device, insertion assembly, and suture anchor are provided. The insertion assembly is coupled between the deployment device and the suture anchor to allow the deployment device to deploy the suture anchor into bone. The suture anchor assembly includes a suture anchor having an insert with a suture mated thereto, a sleeve disposable over the insert and configured to lock the suture between the insert and the sleeve, and an alignment mechanism formed between the insert and the outer sleeve and configured for rotationally align the insert and the outer sleeve during insertion of the outer sleeve over the insert.
