Watson suffered a torn ACL during a non-contact play in practice last week. Garafolo adds the procedure will be done by Texans team doctor Walt Lowe.
Watson passed for 1,699 yards over six games and was tied for the NFL lead in passing touchdowns with 19 at the time of the injury. It was the most passing touchdowns over a QB's first seven career games since 1970, beating Hall of Fame quarterback Kurt Warner's mark. The Texans scored more than 33 points in each of Watson's four October starts.
Since he took over as the Houston's starter in Week 2, Watson led the NFL in points per game (34.7), was sixth in passing yards per game (266.2 average), first in passing TDs (18) and fourth in passer rating (108.4), per NFL Research. Watson, who was selected No. 12 overall by Houston in the 2017 NFL Draft, was on pace to throw 43 touchdowns -- 17 more than any other rookie in NFL history.