J.J. McCarthy, the rookie quarterback for the Minnesota Vikings, has been diagnosed with a meniscus tear in his right knee, with the severity yet to be determined pending surgery. Despite this setback, McCarthy showcased his potential in the preseason opener against the Raiders, throwing two touchdown passes and demonstrating his capability to compete for the starting role against Sam Darnold.

• McCarthy's knee injury could impact his availability for the regular season.
• His performance in the preseason suggests he is a strong contender for the starting quarterback role.