Minnesota Vikings rookie quarterback J.J. McCarthy faces a significant injury setback after tearing his meniscus during his preseason debut, which will require surgical intervention. The type of surgery—either a minor meniscectomy or a full repair—will determine McCarthy's recovery timeline, ranging from four weeks to several months. While a swift recovery could allow him to return as a backup by late September, a more extensive repair might sideline him for the entire season. In light of McCarthy's injury, Sam Darnold is expected to start in Week 1, providing the Vikings with a solid alternative as they navigate the early part of the season. Despite the disappointment, McCarthy expressed optimism on social media about his recovery. Ultimately, the Vikings' long-term strategy involves McCarthy's development, making a cautious approach to his recovery more likely.