Tendons are tissues that connect muscles to bones and are important for movement and locomotion. Injuries to tendons are quite common, with millions of people -- particularly athletes -- affected worldwide, and can often take many months to recover from, significantly impacting quality of life. Furthermore, while many options for treatment exist, none of them are perfect cures and many result in pain, immunogenicity, or long-term treatment failure. Therefore, a novel therapeutic strategy for tendon repair is needed.