Pro Bowl defensive end J.J. Watt underwent a relatively minor knee surgery following the end of the Texans' season, according to a league source not authorized to speak publicly.
Watt is expected to make a full recovery this offseason.
The three-time NFL Defensive Player of the Year made an epic comeback from injuries this past season, leading the AFC with 16 sacks and the NFL with seven forced fumbles.
ON TEXAS SPORTS NATION: 2018 Texans review - Defensive line
Watt started every game after being plagued by a broken leg and back problems that required surgeries the previous two seasons.